Season 2 Episode 2
Summer Run Benton decides it's time to clear his conscience by revealing the truth about his relationship with Jeanie, and Carter tries desperately to regain his superiors' respect following the disastrous start to his new job

 
Season 2 Episode 3
Do One, Teach One, Kill One Ross goes against work ethics by becoming emotionally attached to a two-year-old Aids patient, and Carter nervously performs his first unsupervised surgery. Hathaway and Shepard's relationship takes a step forward as they go on a date

 
Season 2 Episode 4
What Life? Carter agrees to step into the breach for the injured Benton, while Lewis's work suffers as she struggles to look after her niece by herself. Greene isolates himself by supporting unpopular new resident Dr Weaver

 
Season 2 Episode 5
And Baby Makes Two Ross and Greene come into conflict over an Aids patient, while the surgeons use their expertise to re-attach a limb, inadvertently thwarting an insurance fraud. Benton continues to convalesce, giving Carter the opportunity to shine. Lucy Liu guest stars

 
Season 2 Episode 6
Days Like This Dr Ross acts improperly in his relationship with a medical student, leading Bernstein to advise him to consider his career. Randi's past is the cause of much speculation, while Jeanie starts work in ER. American hospital drama, guest starring William H Macy and Robert Picardo

 
Season 2 Episode 7
Hell and High Water Ross comes under fire for his one-night stand with a medical student, then lays his career on the line by taking controversial action to save a child's life. Meanwhile, Dr Greene puzzles over the cause of an elderly lady's fainting - until he realises she's been smoking marijuana to relieve eye problems

 
Season 2 Episode 8
The Secret Sharer Ross becomes a minor celebrity by saving a child's life, but his inflated ego soon brings him into conflict with Greene. Meanwhile, Lewis attempts to find a babysitter, and Hathaway treats a girl who attempted suicide because she's pregnant by her brother

 
Season 2 Episode 9
Home Lewis is caught on the horns of a dilemma and cannot decide whether to focus on her career or Suzie. Meanwhile, Dr Greene's wife and daughter are involved in a serious car accident, and Carter makes a suggestion to Benton

 
Season 2 Episode 10
A Miracle Happens Here Greene clashes with the hospital lawyer over whether to settle out of court with the relatives of a pregnant woman who died in his care, and an alarming incident takes place amid the city's Christmas celebrations. Anthony Edwards stars

 
Season 2 Episode 11
Dead of Winter An inquiry is launched into the discovery of a group of sick children abandoned in an apartment. Greene's marital problems continue to escalate and Benton receives good tidings about his career

 
Season 2 Episode 12
True Lies Greene and his daughter become angry about custody arrangements. Ross refuses to talk to his father, and Carter has difficulty delivering bad tidings

 
Season 2 Episode 13
It's Not Easy Being Greene Greene receives bad news from both his wife and the hospital. Meanwhile, Lewis considers an offer to take up the chief resident position and Benton grows increasingly suspicious of Vucelich's research study. Medical drama, starring Anthony Edwards

 
Season 2 Episode 14
The Right Thing Ross's birthday celebrations are dampened by more pleas for reconciliation from his father. Benton makes a below-the-belt remark about Vucelich's innovative surgery techniques - intensifying the already bitter feud between them. Medical drama, starring George Clooney and Eriq La Salle

 
Season 2 Episode 15
Baby Shower Ross visits his estranged father, leaving a bewildered Benton to cope with an emergency unit packed full of women in labour. George Clooney, Eriq La Salle and Anthony Edwards star

 
Season 2 Episode 16
The Healers Carter suffers a crisis of confidence and Greene finally accepts his marriage is over, while Ross faces up to the fact that he'll never see eye to eye with his father. Noah Wyle, George Clooney and Anthony Edwards star

 
Season 2 Episode 17
The Match Game Carter dashes his chance of being accepted into the residency programme and Greene finds himself in another legally threatening situation. Chloe confesses to Lewis that she wants Susie back. Michael McShane guest stars

 
Season 2 Episode 18
Shift in the Night Greene is worked to the limit by four successive overnight shifts - only to witness a terrible car accident on his way home. Anthony Edwards plays the over-stretched medic

 
Season 2 Episode 19
Fire in the Belly Greene embarks on a new romance, and Benton finally decides to act on Vucelich's fraudulent research. Meanwhile, things come to a head for Lewis in the custody battle. Medical drama, starring Eriq La Salle and Anthony Edwards

 
Season 2 Episode 20
Fevers of Unknown Origin Greene and Ross get involved in romantic intrigue with their partners and Benton gets a response to his whistle-blowing letter. Hospital drama, starring Anthony Edwards and George Clooney

 
Season 2 Episode 21
Take These Broken Wings Lewis takes an encounter with an abused child to heart and Hathaway finds herself in the dock testifying to Shep's violent behaviour. Ross's father goes on the run and Jeanie's husband falls ill - but fears arise that there may be more to the flu-like symptoms than meets the eye. Piper Laurie guest stars

 
Season 2 Episode 22
John Carter, MD Carter postpones accepting his medical degree to comfort a desperately ill girl awaiting a liver transplant. Greene and Weaver make an important announcement - their selections for next year's staff positions

 
Season 5 Episode 1
Day for Knight A third-year medical student is put through her paces on her first day in the busy accident and emergency department, while Ross treads a fine line as he serves his probation. Meanwhile, Benton's son succumbs to an infection and Corday returns from an interview in Denver. George Clooney and Eriq La Salle star

 
Season 5 Episode 2
Split Second Benton is taken aback to learn of his son's deafness. Corday makes an important decision about her future, and Carter suffers sleepless nights. Starring Eriq La Salle and Alex Kingston

 
Season 5 Episode 3
They Treat Horses, Don't They? Ross adjusts to his new role as the paediatric attending doctor, while it seems Greene can do no wrong in Rachel's eyes. Medical drama, starring George Clooney and Anthony Edwards

 
Season 5 Episode 4
Vanishing Act Weaver applies to be chief, Jeanie makes a life-or-death decision and Hathaway clashes with Evans over how to treat an unruly gang member. Medical drama, starring Laura Innes and Gloria Reuben

 
Season 5 Episode 5
Masquerade A Hallowe'en party at the medical student dorm ends in disaster, Weaver gets disappointing news on the professional front and Greene encounters setbacks in his private life. Drama, starring Laura Innes and Anthony Edwards

 
Season 5 Episode 6
Stuck on You Greene saves the life of a teenage male prostitute who has been beaten up, and Weaver hears more discouraging news regarding her bid for ER chief. Corday tires of being bossed about, and two brothers have an unfortunate mishap with a sharp implement and carpet glue

 
Season 5 Episode 7
Hazed and Confused Corday mistakenly administers a potentially fatal injection at the end of an exhausting 36-hour shift, and Hathaway's stress levels also reach a high with the realisation that she may be unable to conceive. Greene suffers a humiliating initiation ceremony and a star candidate applies for the role of ER chief

 
Season 5 Episode 8
The Good Fight While Benton operates on a girl with a rare blood group, Lucy and Carter go in search of her father - one of the few matches for her type. Hospital drama, starring Eriq La Salle, Noah Wyle and Kellie Martin

 
Season 5 Episode 9
Good Luck, Ruth Johnson Staff celebrate the 100th birthday of a woman born at the hospital, but it's business as usual for Hathaway as she treats a youngster with a shocking secret. Meanwhile, paramedics collide with a car, and Corday decides to end her relationship with Benton

 
Season 5 Episode 10
The Miracle Worker Carter persuades a grieving mother to agree to organ donation, having tried in vain to save her teenage son's life. Corday forms a relationship with a classical musician being treated for prostate cancer, and Amanda Lee's behaviour becomes increasingly bizarre

 
Season 5 Episode 11
Nobody Doesn't Like Amanda Lee Joi buckles under the strain of personal problems, but luckily Hathaway is on hand to help out. Meanwhile, Greene suspects Amanda Lee is telling tall stories and decides to check her credentials - but discovers more than he bargained for

 
Season 5 Episode 12
Double Blind Hathaway encourages a terminal cancer patient to smoke cannabis, Corday decides to take Maggie's side in the forthcoming sexual harassment case against Romano, and Greene discovers Ross has been breaking the rules. Medical drama, starring Julianna Margulies and George Clooney

 
Season 5 Episode 13
Choosing Joi Corday faces questioning over the complaint she lodged against Romano. Benton's career is threatened, and Ross and Hathaway come to the aid of a dying youngster. Medical drama, starring Eriq La Salle and Alex Kingston

 
Season 5 Episode 14
The Storm - Part One Part one of two. Doug is suspended as word gets around that he hastened the death of a terminally ill youngster. Meanwhile, a snowplough and a bus collide during a fierce storm, leaving staff struggling to cope with the influx of casualties. Drama, starring George Clooney and Julianna Margulies

 
Season 5 Episode 15
The Storm - Part Two Part two of two. Greene struggles to save the lives of children trapped in a crashed school bus. Ross tells Carol he's taking a job in Portland and wants her to go with him, while tests on Jeannie reveal worrying complications. Drama, starring George Clooney and Anthony Edwards

 
Season 5 Episode 16
Middle of Nowhere Benton encounters hostility and racism in Mississippi, where he begins a two-week stint of relief work to earn extra money to pay for his son's treatment. Back in Chicago, Jeanie struggles to cope with the reality of being HIV positive. Drama, starring Eriq La Salle

 
Season 5 Episode 17
Sticks and Stones Lucy upsets an elderly patient's family by telling her the truth about her illness. Carter finds himself in the middle of a full-blown riot, Jeanie gives her two suitors the brush-off and Carol tells Elizabeth she's pregnant with Doug's child

 
Season 5 Episode 18
Point of Origin Carol decides to keep her baby, and Mark tries to save refugee Mobalage from deportation by helping him remember what happened. Meanwhile, Kerry is disappointed to learn the woman she rescued isn't her mother

 
Season 5 Episode 19
Rites of Spring Carol asks Dr Greene for help, afraid she may miscarry. Jeanie rediscovers her faith, Lucy believes she has found her calling in psychiatric medicine and Elizabeth experiences a sensational evening out

 
Season 5 Episode 20
Power As Carol prepares to send news of her pregnancy to Doug, a massive power cut hits the hospital, and the ER staff are shocked to discover a rapist stalking the corridors under cover of the ensuing darkness. Starring Julianna Margulies and Anthony Edwards

 
Season 5 Episode 21
Responsible Parties A car crash leaves two teenagers fighting for their lives - although the driver appears to have escaped unharmed. Anspaugh controversially awards the trauma fellowship to Benton, leaving Corday uncertain of her future and, as news of her pregnancy breaks, Carol finally hears Doug's reaction

 
Season 5 Episode 22
Getting to Know You Weaver brings in a boy who has been abandoned on the streets, while Lucy realises she has become addicted to her medication. Carla makes a shocking announcement, and Carol gets a big surprise

 
Season 6 Episode 1
Leave It to Weaver Greene receives bad news and his mood isn't improved by the appointment of a new chief of staff. Baby Reece continues to present problems for his struggling parents, while Cupid strikes Carter in the shape of his cousin's beautiful ex-wife, played by guest star Rebecca De Mornay. Hospital drama, with Anthony Edwards and Noah Wyle

 
Season 6 Episode 2
Last Rites Elaine is furious to learn Carter has discovered her secret, but she's not the only one on the warpath as Greene takes Weaver to task over carrying out a patient's dying wishes. A promotion is on the cards for Corday. Medical drama, starring Anthony Edwards and Alex Kingston

 
Season 6 Episode 3
Greene with Envy Weaver introduces Greene to the eminent Dr Gabriel Lawrence, but the pair get off to a bad start, clashing over a decision to order tests for a patient. Anthony Edwards and Alan Alda star

 
Season 6 Episode 4
Sins of the Fathers Cleo's failure to diagnose a patient's iron overdose has tragic consequences. Lawrence's health problems begin to show as his memory falters, and Hathaway befriends a pregnant waitress. Rebecca De Mornay guest stars

 
Season 6 Episode 5
Truth & Consequences A prank in a science class goes horribly wrong, Greene begins to wonder why Lawrence seems so easily confused, and Hathaway discovers Meg's drug addiction

 
Season 6 Episode 6
The Peace of Wild Things Lawrence admits to Weaver that he is taking medication for Alzheimer's disease, Hathaway witnesses Meg's collaboration with a drug dealer, and a gas leak causes havoc in the suture room. Elsewhere, Jeanie resigns and Carter deals with a sensitive resuscitation case. Drama, guest starring Alan Alda, with Laura Innes and Noah Wyle

 
Season 6 Episode 7
Humpty Dumpty Weaver makes Kovac an offer, Corday extracts a confession and Lawrence treats his final patient. Hospital drama, starring Laura Innes, Anthony Edwards and George Clooney

 
Season 6 Episode 8
Great Expectations Hathaway goes into labour at a subway station, but gets to the hospital in the nick of time. Amid chaotic scenes, her first baby is delivered successfully - although the second faces life-threatening complications

 
Season 6 Episode 9
How the Finch Stole Christmas Corday ignores a murderer's taunts and persuades him to have surgery for a potentially fatal blood clot. Lucy goes to extremes to help a cardiac patient who needs a transplant. Drama, starring Alex Kingston and Kellie Martin

 
Season 6 Episode 10
Family Matters Elizabeth is forced to agree to grant Rollins a wish if he will reveal the location of a missing body, and Dr Kovac befriends two brothers. Drama set in the emergency ward of a Chicago hospital, starring Anthony Edwards and Noah Wyle

 
Season 6 Episode 11
The Domino Heart Lucy's patient finally has a heart transplant, though all does not go as planned. Meanwhile, Greene interferes in a domestic dispute and Carter forces Chen to go against her wishes. Medical drama, starring Anthony Edwards and Noah Wyle

 
Season 6 Episode 12
Abby Road Carter helps a patient with muscular dystrophy and Abby soon finds life in the ER isn't quite what she expected, while Kovac and Carol treat a boy whose mother is making his condition worse. Medical drama, starring Maura Tierney and Anthony Edwards

 
Season 6 Episode 13
Be Still My Heart Hathaway and Kovac have heartbreaking news to deliver to two children injured in a car crash, Lucy turns to Carter for advice and members of staff are touched by tragedy themselves. Medical drama, starring Goran Visnjic and Julianna Margulies

 
Season 6 Episode 14
All in the Family Weaver discovers Carter and Lucy have been stabbed and raises the alarm, sending shockwaves among the hospital staff. Benton sets about trying to save his protege's life with help from Anspaugh, while Cleo is forced to perform an emergency operation on a dying man without assistance. Noah Wyle and Eriq La Salle star

 
Season 6 Episode 15
Be Patient Kovac witnesses a hit-and-run accident and commandeers a plumber's van to rush the victim into hospital. Hathaway deals with sexually active girls putting themselves at risk and Greene learns his father has cancer. Medical drama, starring Goran Visnjic and Julianna Margulies

 
Season 6 Episode 16
Under Control Carter's return to the ER is mired in controversy as he prescribes a risky course of treatment for a potential suicide case. Greene tries to persuade his father to do something about his cancer and Corday attempts to harvest a brain-dead patient's organs

 
Season 6 Episode 18
Match Made in Heaven Cleo and Corday argue over how to treat a teenage car-crash victim, while Abby helps an exhausted mother of five small children and Kovac initially dismisses a patient's leukaemia symptoms as anxiety

 
Season 6 Episode 19
The Fastest Year Weaver returns to work and Carter is encouraged to seek professional help to cure the insomnia brought on by his traumatic attack. Greene takes his father on a special outing, while Kovac and Hathaway's relationship becomes more personal. Hospital drama, starring Noah Wyle and Anthony Edwards

 
Season 6 Episode 20
Loose Ends Carter defies hospital policy and performs an ICU procedure himself, while Kovac has his own problems, notably dealing with poor patient follow-ups and trying to woo Hathaway - who's finding it equally hard to keep her mind on her work. Meanwhile, David Greene makes a heartfelt gesture to Corday. Hospital drama, starring Noah Wyle and Julianna Margulies

 
Season 6 Episode 21
Such Sweet Sorrow George Clooney makes a brief guest appearance as Hathaway hops on a plane to be reunited with Doug. Back at the hospital, Carter's fragile mental state causes an oversight that leaves a patient fighting for her life. Starring Noah Wyle, Laura Innes and Anthony Edwards

 
Season 8 Episode 1
Four Corners Greene comforts a traumatised woman who has learned unpleasant family news on a television talk show, and also finds himself forced to face his own demons. Meanwhile, a stoic Carter attends a funeral which reunites him with his parents, Benton keeps a watchful eye on the recovering Cleo after her accident, and a nervous Weaver waits to see how colleagues will react to her new-found sexuality

 
Season 8 Episode 2
The Longer You Stay Abby feels she's being neglected by a distracted Kovac, and Benton's ex-girlfriend is killed in a car crash, leaving him worried about the impact on his son. Meanwhile, Carter is swamped with problematic patients, including several heavy metal roadies and musicians injured at a concert

 
Season 8 Episode 3
Blood, Sugar, Sex, Magic Greene's runaway teenage daughter arrives at the hospital in search of shelter, Carter and Abby grow closer and Malucci flirts with disaster. A hesitant Chen struggles to save the life of an abandoned baby, and Romano criticises Weaver over the case of a patient who died on her watch

 
Season 8 Episode 4
Never Say Never Lewis returns to Chicago in search of a job and the chance to renew old friendships, leaving Corday feeling jealous. Chen is forced to attend a risk management review investigating her treatment of a deceased patient and Kovac has an unexpected visitor. Sherry Stringfield and Goran Visnjic star

 
Season 8 Episode 5
Start All Over Again Weaver prepares to call her birth mother and treats a man who was accidentally run over by his daughter. Susan has a hectic first day back, treating a girl with an ectopic pregnancy and a man faking a coma. Hospital drama, starring Laura Innes, Sherry Stringfield and Anthony Edwards

 
Season 8 Episode 6
Supplies and Demands Lewis treats two college students suddenly hit by a lethal virus and Corday is questioned by the county investigator about the deaths of elderly patients in her care. Kovac finds a job for his waitress friend Nicole, but disaster nearly strikes when she can't cope. Abby tells an unreceptive Carter she'd like a date with him

 
Season 8 Episode 7
If I Should Fall from Grace Benton reluctantly agrees to take a paternity test to prove he's Reese's father. Corday desperately searches for the individual who is murdering her elderly patients, and an inquisitive student proves to be a breath of fresh air for the staff

 
Season 8 Episode 8
Partly Cloudy, Chance of Rain Weaver speeds to the site of an accident where a pregnant woman lies injured inside a wrecked ambulance, and Benton receives the results of the paternity test. Meanwhile, Kovac's new girlfriend gets into trouble, Carter's grandmother is injured in a hit-and-run incident, and Greene deals with a guilt-ridden boy who feels responsible for the disappearance of his brother

 
Season 8 Episode 9
Quo Vadis? Benton fights for custody of Reese, and Corday waits for a distraught husband to decide whether surgeons can remove his fatally injured wife's organs for transplant. Meanwhile, Greene and Lewis treat a brain-damaged teenage boxer hurt in a bout with his guilt-ridden brother, and Carter helps a woman complaining of a recurring allergic reaction

 
Season 8 Episode 10
I'll Be Home for Christmas The custody case reaches a critical stage and Benton learns he must choose between his job and his child - unless a cranky Romano agrees to tailor his work schedule. Carter finds romance but gets upsetting news from his father, and Weaver is perplexed by a pregnant woman who is ready to give birth despite having been in a coma for the past year

 
Season 8 Episode 11
Beyond Repair Abby has a few unpleasant birthday surprises, including the news that her ex-husband is engaged and Kovac plans to leave town for two months to work in Bosnia. Carter has an uncomfortable encounter with the patient who stabbed him two years earlier, and questions his mother's motives for returning to Chicago to care for his grandmother

 
Season 8 Episode 12
A River in Egypt Lewis and Weaver clash over the treatment of a convicted murderer who wants to be allowed to die, and Abby struggles to persuade a neighbour to leave her abusive husband. Carter is caught in the middle of his parents' divorce, while Greene finds his wayward teenage daughter impossible to control

 
Season 8 Episode 13
Damage Is Done Greene and Corday's baby daughter is brought in suffering from an accidental overdose and Lewis treats a father and daughter injured by a letter bomb. Carter meets a dying 12-year-old leukaemia patient, the doctors sympathise with a girl who crashed while driving her drunken mother home and Abby gets a late-night visit from her next-door neighbour. Medical drama, starring Anthony Edwards, Alex Kingston and Sherry Stringfield

 
Season 8 Episode 14
A Simple Twist of Fate Greene and Corday come to blows over Rachel, Abby regrets championing her battered neighbour who refuses to charge her husband with abuse and an outbreak of food poisoning causes problems in the hospital. Carter gets a surprise visit from his father after accusing his mother Eleanor of emotional abandonment

 
Season 8 Episode 15
It's All in Your Head As Greene's medical problems reappear, Corday simmers with rage in her hotel room, angered by the way he dealt with Rachel following the baby's overdose. A father is treated for severe burns after experimenting with illegal drugs and torments staff with his refusal to see his family

 
Season 8 Episode 16
Secrets and Lies A bag of adult toys provokes a few moments of hilarious but inappropriate behaviour among the staff, prompting Weaver to order Abby, Carter, Lewis, Kovac and Gallant to attend a day-long sexual harassment seminar. The five find themselves sharing intimate details about their relationships, with Abby and Lewis candidly discussing their problems with Carter and Kovac, who in turn have a heated debate which reveals much about their attraction to Abby

 
Season 8 Episode 17
Bygones Mark and Elizabeth continue struggling to work together, but Susan's presence doesn't help matters. Weaver treats the victims of a blaze, worried her firefighter friend Sandy has been killed, Chen becomes the focus of a deranged man suffering from psychological trauma and two college students require help after claiming they were attacked on campus by a maniac

 
Season 8 Episode 18
Orion in the Sky Greene attempts to distract himself from his brain tumour by concentrating on work, but soon has to accept his illness is affecting his ability. Pratt is told he must improve his bedside manner if he is to have any chance of securing a position as a resident, Abby moves out of Kovac's apartment when her abusive neighbour leaves her building and an Egyptologist is brought to the hospital with a rare disease

 
Season 8 Episode 19
Brothers and Sisters Lewis rushes off to New York after receiving disturbing news from her six-year-old niece and Corday fears the worst when Rachel phones from Hawaii. Weaver deals with a couple who have to decide whether to disconnect their brain-dead son from his life-support machine, and Carter chastises Kovac for allowing Abby to drown her sorrows in alcohol

 
Season 8 Episode 20
The Letter Emotions spill over as Carter reads out a heart-wrenching letter from the ailing Greene to the whole of the Emergency Room, and then tries to persuade Abby to attend an Alcoholics Anonymous meeting. Romano struggles to save a girl's life, Weaver berates a psychiatric patient and Pratt learns he will be assigned to County General for his residency

 
Season 8 Episode 21
On the Beach In an emotionally charged episode, Greene and his daughter Rachel are finally reconciled at his childhood home in Hawaii shortly before he dies. His body is then brought back to Chicago to enable friends and colleagues to attend the funeral. Anthony Edwards stars

 
Season 8 Episode 22
Lockdown The emergency room is placed under strict quarantine after Carter and Abby treat two children with worrying symptoms, and when reporters surround the building, police are forced to block the exits to the hospital. As the patients trapped inside grow increasingly fractious, Pratt and Chen ignore their own well-being to save the life of a homeless man

 
Season 9 Episode 1
Chaos Theory Abby, Carter, Chen, Pratt and homeless Stan are confined to the ER for two weeks, while all the other patients are evacuated and sent to different hospitals, and a tragic accident means life will never be the same for Romano. Meanwhile, newly widowed Corday returns to London to decide what to do with her life

 
Season 9 Episode 2
Dead Again Pratt brings a supposedly dead man back to life and a new group of medical students arrive to find the ER in a state of pandemonium caused by the closure of another city hospital. Romano continues physical therapy and Weaver starts acting strangely, eventually breaking down in tears

 
Season 9 Episode 3
Insurrection An enraged drug addict points a gun at Chen and other members of staff, prompting Carter to lead a walkout when his requests for the installation of metal detectors are ignored. Meanwhile, Lewis counsels a woman whose son is terminally ill, Kovac becomes curious about the parents of an HIV-infected child and Abby's brother visits her at work

 
Season 9 Episode 4
Walk Like a Man Gallant is disgusted at the callous disregard shown by colleagues toward an elderly patient and an Army ranger under his care. Abby tries to set the record straight with Carter about her drinking. Mekhi Phifer and Noah Wyle star

 
Season 9 Episode 5
A Hopeless Wound Corday takes on a medical student suffering from Parkinson's disease, who soon has to make a difficult diagnosis after a fire at a Hallowe'en party. Meanwhile, Romano's rehabilitation is not progressing as well as he would like and he begins to doubt his role when the prospect of surgery becomes less certain. Don Cheadle guest stars

 
Season 9 Episode 6
One Can Only Hope Corday clashes with new surgical resident Paul Nathan over a patient who does not want to be resuscitated. Abby's brother returns and tensions hit fever pitch after a petition against Luka leaves the ER short of staff

 
Season 9 Episode 7
Tell Me Where It Hurts Carter and Chen treat an immigrant nanny who they think was impregnated by her employer. Abby fears for her missing brother's safety and Weaver receives much-needed good news. Meanwhile, Kovac faces more turmoil in his professional life and new surgical resident Paul Nathan gets a frosty reception from his colleagues after he offers dubious advice to patients

 
Season 9 Episode 8
First Snowfall Abby and her mother search for Eric, who they suspect is suffering from mental health problems, and Carter struggles to leave Chicago to lend his support. Elsewhere, Corday helps a father make a decision after his family are run down by a lorry driver, and sympathises with surgical resident Paul Nathan as his symptoms worsen. Sally Field guest stars

 
Season 9 Episode 9
Next of Kin Chen is overcome with emotion when a baby is found abandoned in the emergency room and Abby worries about her unstable mother's interference with the treatment of her brother at a psychiatric hospital. Kovac receives a surprising offer from an elderly woman and Pratt treats a girl he suspects is hiding a secret

 
Season 9 Episode 10
Hindsight In an episode that reviews events in reverse order, it seems the spirit of Christmas has deserted Kovac as he lurches from one crisis to another. At work, he struggles to help a man fight for life and later gets involved in a road accident, seriously injuring his passenger. Meanwhile, Abby treats a pair of belligerent elves and a female hockey player

 
Season 9 Episode 11
A Little Help from My Friends Pratt begins to behave erratically and Weaver finds it increasingly difficult to keep her pregnancy secret. Lewis warily monitors the behaviour of a self-destructive patient, while Romano warns a guilt-stricken Kovac not to tell a grieving mother that he indirectly caused her son's death

 
Season 9 Episode 12
A Saint in the City Weaver faces a dilemma when an influential alderman tests positive for syphilis and Carter is impressed by a wily old doctor practising at an inner-city clinic. Kovac feels compelled to trick a seriously injured patient into believing his wife has died, and Pratt keeps an eye on his mentally disabled brother Leon as he starts a new job. Acclaimed drama, starring Laura Innes, Bruce Weitz and Ed Asner

 
Season 9 Episode 13
No Good Deed Goes Unpunished Pratt is overwhelmed when his learning-disabled brother Leon persuades him to treat a gravely wounded robber who duped him into participating in a crime. Carter shocks Abby with his decision to move to Africa. Kovac threatens Weaver, and Edward Dorset startles Corday by asking her out on a date. Drama, starring Noah Wyle, Maura Tierney and Mekhi Phifer

 
Season 9 Episode 14
No Strings Attached Abby is distraught to learn her emotionally troubled brother has gone missing while piloting an aeroplane. Romano also receives depressing news, and the emergency room is inundated with teenage girls who were run over by a fellow student - and a rare disease may have been the cause of the accident

 
Season 9 Episode 15
A Boy Falling Out of the Sky Carter puts a proposal to Abby, Maggie refuses to believe that Eric is dead and Lewis's cancer patient returns to the hospital with pneumonia. Hospital drama, starring Noah Wyle, Sally Field and Maura Tierney

 
Season 9 Episode 16
A Thousand Cranes Pratt tries to calm down Gallant when they are arrested and questioned in connection with a murderous rampage at a diner near the hospital, while Lewis spends time with teenage cancer patient Sean, who fears he might not have long to live. Drama, starring Mekhi Phifer, Sharif Atkins and Patrick Fugit

 
Season 9 Episode 17
The Advocate Weaver agrees to treat the lover of powerful new patron Alderman John Bright in secret for syphilis, but when the patient suffers a severe allergic reaction, she desperately tries to prevent her actions becoming public. Carter and Abby reassess their relationship, and Kovac reflects on his troubled career

 
Season 9 Episode 18
Finders Keepers Romano is angry at being transferred to the emergency room and unwittingly endangers a patient's life because of his attitude. Kovac pleads with Weaver to allow a Croatian boy to come to Chicago for treatment and Corday's cancer patient faces an agonising choice between her own life and that of her unborn child

 
Season 9 Episode 19
Things Change Abby is threatened by an over-medicated psychotic patient and gets an update on her missing brother. Romano continues to make rash judgements, Kovac invites an old Croatian friend to observe the chaos of an American inner-city hospital, and a group of medical students witness Carter refuse to give up on a heart patient. Guest starring Johnny Sneed and Tom Everett Scott

 
Season 9 Episode 20
Foreign Affairs Kovac breaks the rules in the hope of saving a Croatian boy's life and Romano is forced to make a difficult decision. Carter endures a tough time as he strives to prevent an angry gang member seeking revenge on an enemy, while his beloved grandmother's funeral is disrupted by the arrival of Abby's mentally unstable brother

 
Season 9 Episode 21
When Night Meets Day A dual storytelling device divides the day and night shifts of Carter and Pratt. For Carter, it's a hectic day as he deals with two victims of a mass poisoning, a wounded gang member, a dying Buddhist and a heart-attack victim, while on the graveyard shift, Pratt treats a badly burned firefighter. Elsewhere, Romano experiences life as a patient when he undergoes surgery

 
Season 9 Episode 22
Kisangani A sweat-drenched Carter finally arrive in the Congo as part of a voluntary medical programme during the civil war and finds primitive Third World facilities. He ventures deeper into the jungle to reunite with Kovac and together they risk their lives manning a crude outpost used for a vaccination campaign, before finding themselves caught in the line of fire between warring tribes. Noah Wyle and Goran Visnjic star

 
Season 10 Episode 1
Now What? Carter returns to Chicago, but gets a cool reception from Abby and soon jets off once more to the Congo after receiving shocking news about Luka. Raw recruit Neela has a tough first day in the ER, managing to upset Chen in the process, while renovations at the hospital and a traffic accident cause further problems

 
Season 10 Episode 2
The Lost Carter returns to the Congo to help transport Luka's body back to the US, but finds a case of mistaken identity instead - and soon discovers there's still hope for his erstwhile colleague. Teaming up with old friends Charles and Gillian, he embarks on a desperate race against the clock

 
Season 10 Episode 3
Dear Abby Abby experiences a disastrous day when her fellow nurses protest against the working conditions - and a letter from Carter fails to improve things. Romano's foul mood isn't improved by his new prosthetic arm, leading him to fire three nurses. A trio of new second-year residents arrive and Pratt anxiously waits to meet Chen's old-fashioned parents

 
Season 10 Episode 4
Shifts Happen Pratt is left in charge of a busy night shift - and with only Coop and a handful of medical students to deal with the patients, accidents inevitably start happening. Abby desperately needs to borrow some money, and is eventually forced to turn to her ex-husband for help, while Corday wonders whether her relationship with Dorset is developing too quickly

 
Season 10 Episode 5
Out of Africa A spirited new nurse joins the team at County General as a replacement for Abby, who has decided to go back to medical school, and Luka faces his first day at work since returning from the Congo. Lewis worries about an architect who is growing increasingly depressed about his deteriorating eyesight, Corday makes a disturbing discovery about Dr Dorset, and one of the medical students finds the strain of working under constant pressure is too much. Bob Newhart guest stars

 
Season 10 Episode 6
The Greater Good Kovac clashes with Pratt over whether to save a miscarriage-prone woman's unborn child, then falls out with a psychiatrist about the treatment of an abused youngster desperate to return to his drug-addicted mother. Lewis meets a sarcastic patient who has threatened suicide over his impending blindness and a man turns violent when faced with an exorbitant medical bill. Goran Visnjic and Mekhi Phifer star

 
Season 10 Episode 7
Death and Taxes Professional and personal problems contribute to Lewis's bad day, and things aren't much better for Chen, who discovers her parents have been involved in an accident. Pratt receives a poor report from Romano and has to treat an unusual rape victim, while Sam's son Alex shadows Kovac for the day. Bob Newhart guest stars

 
Season 10 Episode 8
Freefall As the staff battle to deal with an already stressful day, Romano gets caught up in a helicopter crash - but his terrible luck saves Pratt and Morris, who are both in serious trouble with the malicious medic. Meanwhile, Lewis is unaware Chuck is also involved in the disaster, Luka enjoys a pleasant Thanksgiving with Sam and Alex, and Abby daydreams about Carter

 
Season 10 Episode 9
Missing Neela treats two Amish teenagers trying to decide if they want to continue living in their reclusive community, and Corday mourns the loss of a colleague. Lewis searches for the parents of an unconscious five-year-old, while Sam worries Kovac is devoting too much time to Alex

 
Season 10 Episode 10
Makemba Carter tries to bring a bit of Christmas spirit to the Congo - but first has to deal with the heat and his feelings for an Aids worker. Back in Chicago, the staff at County General do their best to observe the holidays despite the chilly conditions. Drama, guest starring Thandie Newton

 
Season 10 Episode 11
Touch and Go The staff of County General welcome Carter back to the ER - but he has a surprise up his sleeve in the form of pregnant girlfriend Kem. Kovac makes an impulsive announcement to Weaver. Sam worries she's neglecting her son, while Gallant is angry to discover a colleague has been seeing his sister. Guest starring Thandie Newton

 
Season 10 Episode 12
NICU Medical students Abby and Neela begin a three-week tour of duty in the neonatal intensive care unit, where their patients include newborn twins, a baby with serious heart problems and a brain-dead infant whose mother holds a vigil at his cradle. Weaver also puts in a surprise appearance - and it seems she has plenty to smile about for a change. Laura Innes directs and stars

 
Season 10 Episode 13
Get Carter Kem spends the day in the emergency room with boyfriend Carter, but her presence proves unpopular with his colleagues. Weaver reveals how Romano's bequest to the hospital will be spent, while Lewis is forced to turn down a job opportunity. Chen calls Gallant from China with bad news, Pratt has second thoughts about his career, and Sam worries about rumours of Kovac's bed-hopping antics

 
Season 10 Episode 14
Impulse Control Sam feels low after dealing with a family involved in a car accident and a teenager forced into prostitution by her boyfriend, prompting her to turn to Luka for company. Carter takes Kem on a grand tour of the city and asks her to move in with him, but is shocked when she decides to go back to Africa

 
Season 10 Episode 15
Blood Relations Carter pines for Kem, prompting Jerry to set up a web chat between the pair, and Neela faces her claustrophobia when a family suffering from carbon monoxide poisoning arrive in need of treatment. A confused Chen returns from China with her father, and Weaver's son makes his first public appearance at the ER

 
Season 10 Episode 16
Forgive and Forget Sam feels the first stirrings of jealousy when Luka's old flame Gillian visits Chicago, and an error of judgement by Morris has grave consequences for the staff. Corday makes the most of being single as she juggles two men, and a group of 13-year-olds turn out to have a sexually transmitted disease

 
Season 10 Episode 17
The Student Neela gets out of her depth after Carter advises her to show more initiative, and Kovac treats a disoriented child. Corday questions the rights and wrongs of dating two men, while Chuck protects Lewis from harassment, and Chen struggles to find a carer for her father

 
Season 10 Episode 18
Where There's Smoke Weaver battles to save her critically injured firefighter girlfriend Sandy, while Neela and Gallant face questions over the death they lied about. Corday receives a pleasant surprise, Abby gets news about her progress, and a pregnant Lewis is confined to bed

 
Season 10 Episode 19
Just a Touch Pratt struggles to diagnose the cause of a woman's seizures, but gets distracted by accusations of sexual harassment levelled against him. Sam's ex gives Kovac cause for concern, and Abby battles to get the attention of her patients, while Weaver vows to do whatever it takes to get her baby son back

 
Season 10 Episode 20
Abby Normal Weaver is ordered to give her son to Sandy's family, while Carter welcomes Kem back to the States. Abby uses controversial drugs to treat a woman prone to seizures, Neela impresses her superiors with her lab work and Sam's relationship with Kovac continues to go downhill. With Thandie Newton

 
Season 10 Episode 21
Midnight Carter rushes pregnant girlfriend Kem to the emergency room, while Corday faces trauma of a different kind as stepdaughter Rachel turns up and asks for the morning-after pill. Meanwhile, Neela welcomes her family to the graduation ceremony, and Pratt searches for a youngster with a heart condition

 
Season 10 Episode 22
Drive Kovac stops to help a woman whose car has broken down, but she and her son are hit by another vehicle, leaving him battling to save their lives. Abby treats a former teacher as she awaits her board results, while Neela heads off to begin her internship. Goran Visnjic stars

 
Season 11 Episode 1
One for the Road Pratt and Chen's lives hang in the balance when they crash into the river following a dramatic car chase. Weaver finds out whether she has been given custody of Henry, while Carter and Kem scatter their son's ashes. Mekhi Phifer and Noah Wyle star

 
Season 11 Episode 2
Damaged Carter's sleep deprivation causes him to make a monumental decision. Luka and Sam confess their feelings for each other and a slip of the tongue by Abby turns the nurses against her

 
Season 11 Episode 3
Try Carter Corday risks her career to perform an illegal organ transplant between two people who are HIV positive, while Pratt's return to work is cut short when Carter sends him home early. Abby orders a series of tests for one of Ray's patients and Neela's search for a job doesn't end the way she'd hoped

 
Season 11 Episode 4
Fear Susan becomes Chief of Emergency Medicine, and faces an immediate problem when Howard resigns. Corday is forced to rethink her future following the illegal organ donation procedure, and a mother who threw her children out of a third-floor window is discovered to be withdrawing from antidepressants. American medical drama, featuring Alex Kingston's final appearance in the series

 
Season 11 Episode 5
An Intern's Guide to the Galaxy Pratt orders each of the doctors to have 25 patients discharged by the end of their shift - which leads Ray to allow a transplant to go ahead without permission from the donor's wife. Neela finds herself a little rusty on her return to the hospital. Mekhi Phifer, Shane West and Parminder Nagra star

 
Season 11 Episode 6
Time of Death In an episode filmed in real time, the last 44 minutes of ex-convict Charlie Metcalf's life are chronicled as the effects of his alcoholism take their toll and he succumbs to liver failure. Ray Liotta guest stars, with Goran Visnjic, Maura Tierney and Linda Cardellini

 
Season 11 Episode 7
White Guy, Dark Hair Sam attempts a risky procedure on a badly beaten woman in a bid to help her talk. Weaver tries to get Susan to be more of a leader, but her efforts prove counter-productive. Meanwhile, a girl gives birth but insists she was never pregnant in the first place. Linda Cardellini, Laura Innes and Sherry Stringfield star

 
Season 11 Episode 8
A Shot in the Dark A police officer is admitted with a potentially fatal gunshot wound, and his 15-year-old son is given the authority to decide on the best course of treatment. Luka resolves to take more of an interest in Alex. Carter and Wendall go rock-climbing and Pratt catches Chen stealing potassium from the hospital. Starring Noah Wyle, Goran Visnjic and Madchen Amick

 
Season 11 Episode 9
Twas the Night Chen is driven to distraction on Christmas Eve as she frantically searches for someone to cover her shift - prompting her to make a life-changing decision. Meanwhile, Carter and Wendall share an awkward kiss, and Abby helps a new medical student treat a man with a serious skin condition

 
Season 11 Episode 10
Skin Abby is kidnapped by two gang members who want her to treat an injured friend. Susan gets sick of having her orders ignored by the rest of the team, and Neela has problems understanding the needs of her patients. Starring Maura Tierney, Sherry Stringfield and Parminder Nagra

 
Season 11 Episode 11
Only Connect Weaver places Kovac and Lewis in charge of the residents, but while most of them find working under observation hard to cope with, Neela develops a crush on her supervisor. Abby returns to work for the first time since her abduction and an ambulance-chasing lawyer starts loitering around the hospital

 
Season 11 Episode 12
The Providers Carter treats a teenage patient, and begins to suspect the drug she was taking was released to the public before it had been properly tested. Investigating the case further, he discovers the neurologist who recommended the treatment is a former student of his. Elsewhere, Abby and Luka both find themselves having to reject the advances of residents under their tutelage

 
Season 11 Episode 13
Middleman Pratt discharges a teenage patient before Wendall has cleared him. Susan realises her contract may be terminated if she doesn't bring in enough money to fund the hospital. Luka and Dubenko clash over the correct treatment for a patient and Jake tries to persuade Abby to go out with him

 
Season 11 Episode 14
Just As I Am Weaver gets a shock when a patient claims to be her birth mother. The pair attempt to get to know each other, but their relationship cools when Kerry reveals she is a lesbian. Meanwhile, Carter confronts a painkiller addict and Pratt tries to avoid working with Jane

 
Season 11 Episode 15
Alone in a Crowd Kovac and Sam fight to save a mother admitted after a stroke, but her only chance of a full recovery involves a risky surgical procedure. Carter agonises over whether to sever his ties with Kem, and three neglected children turn up in the emergency room. Guest starring Cynthia Nixon

 
Season 11 Episode 16
Here and There Neela is surprised by an urgent plea for help from pen-pal Gallant. Struggling with working in a war zone, he turns to his former colleague for assistance in getting a burned Iraqi girl into surgery in Chicago. Parminder Nagra and Sharif Atkins star

 
Season 11 Episode 17
Back in the World Pratt is attracted to an anti-gun campaigner, but later needs her help in treating a child with bullet wounds. Neela searches for Gallant when she finds out he left the hospital without seeing her. Steve returns to Chicago to see Alex, causing problems for Luka, and Carter makes a dubious investment

 
Season 11 Episode 18
Refusal of Care A critically ill woman on hunger strike is brought into the hospital but refuses medical treatment. Abby suspects a patient is a victim of abuse, and Pratt struggles with a difficult case. Maura Tierney and Mekhi Phifer star

 
Season 11 Episode 19
Call Me Ruby An 85-year-old man is admitted with a heart murmur, and accuses Carter of killing his wife 10 years previously. Pratt asks out a social worker, but when he turns up for the date he realises he's bitten off more than he can chew. Guest starring Red Buttons

 
Season 11 Episode 20
You Are Here New chief resident Dr Archie Morris locks horns with Pratt as they deal with the casualties from a fire. Lewis takes out her frustration on Carter, while Ray heeds the advice of several doctors and sends a teenage sickle cell anaemia patient home. Scott Grimes, Mekhi Phifer and Sherry Stringfield star

 
Season 11 Episode 21
Carter Est Amoureux Neela has to deal with Pratt's wrath for performing a complicated operation on a baby. Abby misdiagnoses an emphysema patient, and Ray's procedural mistake on the victim of a knife attack has serious repercussions. Meanwhile, Carter dashes to Paris after learning that Kem's mother has been hospitalised

 
Season 11 Episode 22
The Show Must Go On Pratt confronts his father (guest star Danny Glover), while Carter completes his final shift at the hospital and celebrates at a surprise send-off party. Meanwhile, a diminished workforce at County General are forced to cope with multiple casualties

 
Season 12 Episode 1
Canon City Sam reports her diabetic son missing after he runs away to find his father. As she and Luka attempt to track him down, they discuss their relationship - and realise they have very little in common. Ray, Neela and Abby experience the hardships of R2, struggling to manage patients, interns and their own teaching duties, with Susan, Pratt and the nurses evaluating their progress

 
Season 12 Episode 2
Nobody's Baby A baby's life is endangered when the surrogate mother refuses a Caesarean section. While Ray and Dr Coburn disagree with the biological parents over her treatment, Abby makes a difficult diagnosis on a boy with a rare illness. Pratt is reunited with his estranged father (guest star Danny Glover), and Sam tells Luka she intends to move out. Medical drama, starring Shane West, Maura Tierney and Mekhi Phifer

 
Season 12 Episode 3
Man with No Name New nurse manager Eve Peyton causes a stir by quarrelling with one of the doctors over treatment priorities for a woman in a skating accident and a boy with a head trauma. Kovac and Weaver deal with a severely burned man, while Abby helps a woman make a difficult decision. Medical drama, starring Kristen Johnston, Goran Visnjic, Laura Innes and Maura Tierney

 
Season 12 Episode 4
Blame It on the Rain Kerry and Luka clash over the treatment of a baby injured in a car accident, while Neela deals with the infant's mother - who may have caused the smash deliberately. Recently appointed nurse manager Eve continues to challenge her staff, and Jerry is struck by lightning. Medical drama, starring Goran Visnjic, Laura Innes and Parminder Nagra

 
Season 12 Episode 5
Wake Up New doctor Victor Clemente clashes with Pratt. Kovac is unsure whether to tell a recently awakened coma patient about her accident, but her own recollections lead to a tragic revelation. Medical drama, starring John Leguizamo, Mekhi Phifer and Danny Glover

 
Season 12 Episode 6
Dream House Abby, Neela and Clemente treat a baby chimpanzee, while Pratt's attempt to make amends with his father ends in failure. Sam's promotion proves bittersweet as Eve forces her to get involved in the firing of Haleh, and Ray learns Zoe's secret. Medical drama, starring Maura Tierney, Parminder Nagra, Mekhi Phifer and Linda Cardellini

 
Season 12 Episode 7
The Human Shield A kidnapped girl is injured in a shoot-out, and Abby is caught up in an argument between Clemente and Kovac, who can't agree on the best way to treat her. Ray gets his comeuppance from Zoe's father, while Neela prepares for Gallant's return - but a phone call from Iraq changes everything. Medical drama, with Maura Tierney, Parminder Nagra and Goran Visnjic

 
Season 12 Episode 8
Two Ships Neela and Pratt are plunged into treating on-site casualties when two planes crash over Chicago. Sam earns head nurse Eve's approval as the wounded come in thick and fast, while Kovac and Abby help a patient with serious facial injuries - before deciding not to pursue their romance

 
Season 12 Episode 9
I Do Neela and Gallant decide to tie the knot - on the day of their engagement. Kerry does her best to dispel the tension between Kovac and Clemente, while the mother of a boy with HIV refuses to believe the virus is the cause of Aids. Medical drama, starring Parminder Nagra and Laura Innes

 
Season 12 Episode 10
All About Christmas Eve Christmas Eve arrives, but there is little festive spirit when a victim of gun violence is brought in. Pratt insists the gunmen watch the operation, as a candlelit vigil for the girl begins outside. Haleh's auditions for a singing partner uncover an unlikely crooner, and Eve's treatment of a patient attracts management's attention. Kovac is startled by Abby's generous Christmas gift

 
Season 12 Episode 11
If Not Now Abby struggles to decide whether to keep the baby she knows her partner wants. Neela helps a pregnant teenager face the dilemma of whether to go ahead with an abortion despite the wishes of her deeply religious parents. Ray asks for time off to tour with his band and Clemente's past catches up with him when the police search for him in the emergency room

 
Season 12 Episode 12
Split Decisions Dr Dubenko volunteers to take the day shift when Clemente goes missing, but finds it harder than expected, and an ex-girlfriend suffering from serious abuse-related injuries leaves Ray in an awkward position. Kovac and Abby go shopping as they plan for the birth of their baby, while Neela learns she has been selected for the job she applied for

 
Season 12 Episode 13
Body and Soul The doctors are shocked when their former medical professor is admitted with a wasting disease. As his condition deteriorates, Abby is left facing a tough decision about how he should be treated, especially as the patient is the man responsible for her medical career. James Woods guest stars, with Maura Tierney

 
Season 12 Episode 14
Quintessence of Dust The unexpected visit of Jodie's husband leaves Clemente in the middle of a dangerous domestic dispute. Luka and Abby try to save a patient who's been shot, while waiting to see if test results show their baby is healthy. Dr Pratt is auctioned for charity, and finds everyone wants to be taken for dinner by an eligible bachelor

 
Season 12 Episode 15
Darfur Carter and his colleague Dr Dakarai treat famine victims in Darfur, while back in Chicago, Clemente's return is less than triumphant. Pratt and Neela try to save the 14-year-old victim of a hit-and-run accident, and Kovac suggests names for the baby - to Abby's amusement

 
Season 12 Episode 16
Out on a Limb A wealthy man who had a fainting fit makes an interesting job offer to Sam when she treats him, while Dr Weaver decides she cannot get about the hospital easily enough with her crutch, and contemplates hip replacement surgery. Neela attends a support group for the partners of soldiers. Guest starring Armand Assante

 
Season 12 Episode 17
Lost in America Abby and Kovac struggle to keep a stabbing victim alive while they wait for a surgeon, prompting Clemente to attempt a risky procedure. Ray treats a suicidal man who claims to have overdosed, and Neela prepares a speech for a surgeons' convention. Sam takes a job to pay for her childcare

 
Season 12 Episode 18
Strange Bedfellows Abby and Morris treat an unconscious teenager brought in after a car crash, while police interrogate the vehicle's other passenger. Kovac reveals he wants to go to Africa and help Carter, but Abby's reaction leaves him determined to send someone else in his place. Neela's in-laws visit, bringing her troubling news. Ernie Hudson and Sheryl Lee Ralph guest star

 
Season 12 Episode 19
No Place to Hide Abby suspects something is amiss when she treats a 12-year-old girl and her grandmother, and argues with Luka over the best course of action. A prisoner is brought in with a case of appendicitis, and turns out to be Sam's ex-husband. Meanwhile, tensions run high between Morris and Albright, and Pratt heads to Africa to help Carter. Diane Ladd guest stars

 
Season 12 Episode 20
There Are No Angels Here Pratt gets to work in Darfur and soon realises the nightmarish extent of the situation, while Debbie tries to persuade Dakarai to seek treatment for his illness. Carter and the team find themselves in the middle of the conflict when a man and his pregnant wife arrive at camp in desperate need of assistance

 
Season 12 Episode 21
The Gallant Hero and the Tragic Victor Pratt returns from Africa and helps Abby and Sam with the case of a father and two sons who appear to have been beaten by gang members. Kovac is forced to take action as Clemente's behaviour becomes more disturbed and Neela receives good news from Dubenko. Starring Parminder Nagra, John Leguizamo, Mekhi Phifer and Goran Visnjic

 
Season 12 Episode 22
Twenty-One Guns Two prisoners visit County General for treatment and chaos ensues when gunshots ring out. Luka unknowingly puts himself in harm's way, while Abby gets caught in the line of fire. Meanwhile, Pratt tries to help Neela as she takes care of Gallant's concerned parents (guest stars Sheryl Lee Ralph and Ernie Hudson). With Goran Visnjic and Mekhi Phifer

 
Season 13 Episode 1
Bloodline Staff from a number of departments are called into action to deal with the aftermath of the shooting. Luka and Abby are found, but their baby's life remains in grave danger. The surgical team fight to repair Jerry's injuries, while Steve and his partners flee north with a kidnapped Sam and Alex. Goran Visnjic stars

 
Season 13 Episode 2
Graduation Day Luka's status becomes uncertain as the hospital board consider a permanent solution to the Clemente affair. Meanwhile, he and Abby struggle to keep faith and make the right decisions as their infant son's life hangs in the balance, and staff are forced take on different roles when new personnel - including paramedic Tony Gates - arrive

 
Season 13 Episode 3
Somebody to Love A gay man with heart failure becomes a source of tension as his family and partner clash over his treatment, putting Gates in a tricky position. Pratt has a tough day trying to cope with the latest batch of interns, the new chief resident makes Neela's life a misery, and a stranger turns up at the hospital with unsettling legal news for Luka. John Stamos and Mekhi Phifer star

 
Season 13 Episode 4
Parenthood A man and his grandson are injured in a chainsaw accident, leaving Luka with a difficult case on his hands. Pratt has to handle the ER alone and makes a serious error as he tries to juggle multiple traumas, teaching duties and a troublesome intern. Meanwhile, Sam discovers Alex's latest extracurricular activity

 
Season 13 Episode 5
Ames v Kovac Luka finds himself in court facing a charge of malpractice after a carpenter (guest star Forest Whitaker) suffers a stroke under his care. The case unfolds through flashbacks of both men's recollections of events. Abby struggles to adjust to dramatic changes in her life on her return to work, and an equipment shortage hampers a patient's treatment

 
Season 13 Episode 6
Heart of the Matter The team treat the victim of an accident involving a motorcycle and a car, and discover a condition that his wife wants kept secret. Pratt has a new lady in his life, as well as someone to share his home, while Luka receives important news - and an unexpected visitor at the end of the day

 
Season 13 Episode 7
Jigsaw Luka and Abby struggle to balance workload and baby care until a nanny can be found, but the candidates prove unsatisfactory, while Morris and Sam are faced with a patient refusing treatment who turns out to be more seriously ill than initially thought. Pratt uncovers a local church's risky drug exchange programme

 
Season 13 Episode 8
Reason to Believe Abby and Kovac argue about the diagnosis of a woman showing signs of domestic abuse, and Weaver is called into action as she presents a news report at a school. Meanwhile, Gates, Abby and Neela struggle to save a homeless child's life

 
Season 13 Episode 9
Scoop and Run Abby's Thanksgiving meal with Luka is delayed when she responds to a horrific bus crash by the side of a ravine, earning the respect of the crew on her medical evacuation flight. Kerry develops a relationship with her producer and has a talk with Pratt about his gay brother. Laura Innes stars

 
Season 13 Episode 10
Tell Me No Secrets Luka and Gates treat a teenage girl who was found bleeding in front of her school and appears to have been raped, prompting Abby and Neela to investigate what really happened. Pratt struggles to deal with the revelation his brother is gay, and a new nurse has trouble coping on his first day. Oscar-winner Forest Whitaker guest stars

 
Season 13 Episode 11
City of Mercy Luka and Abby get into the Christmas spirit, but Ames' actions create tension between the couple. Morris learns the true meaning of the holiday season when he plays Santa to a special girl, while Sam and Ben take a stand when a patient is dumped in an alley

 
Season 13 Episode 12
Breach of Trust Kerry receives an interesting job offer in Miami just as budget cuts threaten her current position at the hospital and cause tension between Luka and Abby. Meanwhile, Pratt's community service efforts leads to tragic results, and Gates' home life intrudes on the ER. Medical drama, starring Laura Innes

 
Season 13 Episode 13
A House Divided An argumentative family cause Gates and Ray to clash over the treatment of a child. A patient becomes a source of friction between Luka and Abby, while an unauthorised phone call has serious consequences for Pratt. Meanwhile, Ben moves things forward in his relationship with Sam, and Ray wonders if he has missed his chance with Neela. Medical drama, starring Forest Whitaker

 
Season 13 Episode 14
Murmurs of the Heart Luka attempts to help Pratt escape a legal mess, while Abby tries to reason with a vengeful Ames. Neela and Gates rush to get a patient to the hospital, and Sam's new home is put at risk. Goran Visnjic and Maura Tierney star

 
Season 13 Episode 15
Dying Is Easy Abby and Sam treat a dying comedian who is unable to make his last curtain call. Neela seizes the chance to assist in a double kidney transplant and Ray sees light at the end of the tunnel. Morris proves his worth in a busy ER, while Pratt is forced to defend his actions, and someone makes a surprise decision at the end of the day

 
Season 13 Episode 16
Crisis of Conscience Abby treats a couple with injuries resulting from an unusual ceremony, while an apparent case of liver failure proves more complex than first thought. Neela senses something is amiss as she prepares to perform another kidney transplant - leading to a confrontation with Dubenko

 
Season 13 Episode 17
From Here to Paternity Abby and Pratt try to save a family suffering from frostbite. Sam makes a difficult choice about Alex and assists Morris in treating the victim of a gang shooting, while Neela learns the penalty for refusing to help Dubenko. Gates struggles to come to terms with his father's reappearance. Maura Tierney and Mekhi Phifer star

 
Season 13 Episode 18
Photographs and Memories The team treat the victims of a crash involving a lorry and a family car. Gates reveals to Sarah that he might be her biological father, and Sam meets a photographer who changes her outlook on life, while Luka and Abby try to decide where to get married

 
Season 13 Episode 19
Family Business Luka treats a son with a failing heart and takes responsibility for the father, who has Alzheimer's disease and can only look on helplessly. Gates has family problems of his own, and Pratt tries to help Chaz make a career choice, while Neela and Abby treat a good Samaritan. Prison Break's Stacy Keach guests

 
Season 13 Episode 20
Lights Out Kovac feels the pressure as he tries to co-ordinate the temporary closure of the ER in only 12 hours - and by the end of the day makes a major decision about his future. Sam urges Diana to seek treatment for her cancer rather than spend her final days in Costa Rica, while Gates is sent home following a dispute with Morris. Stacy Keach guest stars

 
Season 13 Episode 21
I Don't Abby is surprised to discover the real reason behind Kovac's formal dinner arrangements and, as the celebration gets into full swing, Pratt plays a key role. Morris and Hope seize an opportunity they can't resist, while Neela finds herself the centre of unexpected attention

 
Season 13 Episode 22
Sea Change Luka and Abby settle into their roles as husband and wife, while Hope and Morris make use of the honeymoon suite. Pratt tries to leave his promiscuous ways behind him as he sets his sights on winning over a woman, and a new doctor causes a stir on the ward. Stanley Tucci guest stars, with Maura Tierney and Goran Visnjic

 
Season 13 Episode 23
The Honeymoon Is Over Kovac puts his honeymoon on hold as he travels back to Croatia to see his ailing father, while Neela finds her life in peril when she attends an anti-war rally. Gates is shocked when he returns home to find Sarah's grandparents taking temporary custody of her, and Dr Moretti decides to make major changes in the ER. Guest starring Stanley Tucci, with Goran Visnjic

 
Season 14 Episode 1
The War Comes Home As the injured begin to arrive from the anti-war rally, Gates frantically tries to find out what happened to Neela. Meanwhile, Abby, Pratt and Morris struggle to adjust to Moretti's strict new emergency room procedures

 
Season 14 Episode 2
In a Different Light Moretti continues to stamp his authority on the ER, which doesn't enamour him to the rest of the staff. Meanwhile, Neela recovers from the injuries she sustained at the rally and Sam looks set to start a new relationship with a police officer. Parminder Nagra and Stanley Tucci star

 
Season 14 Episode 3
Officer Down The staff are called to action when two wounded police officers are brought into the ER, and Neela moves in with Abby as she recovers. Pratt and Bettina consider their relationship and Morris is unable to get out of his rut - even with the help of an attractive woman. Maura Tierney and Parminder Nagra star

 
Season 14 Episode 4
Gravity Neela returns to work for the first time since the rally and Abby is unable to reach Luka. Meanwhile, family comes first for some members of staff as Morris cares for a frightened child and Pratt defends his brother. Parminder Nagra, Maura Tierney and Mekhi Phifer star

 
Season 14 Episode 5
Under the Influence Neela is given responsibility for tutoring a new intern, and tries to find a good way of providing him with some much needed mentoring. Moretti gives Gates another chance to prove himself in the emergency room, but he immediately clashes with Kayson over a diagnosis

 
Season 14 Episode 6
The Test While Morris and Pratt revise for their medical board exams, Abby attempts to defend the interns' performance to her superiors. Moretti hires a new attending to help the overwhelmed staff of the hospital. Harold turns to Neela for guidance on a personal matter, and a teenage patient feels neglected by the doctors

 
Season 14 Episode 7
The Blackout The hospital becomes inundated with elderly patients from a nursing home when the city suffers a blackout. Dr Moretti comes face to face with his ex-wife, who expresses concern about their son Daniel's wellbeing. Morris and Pratt receive their medical board exam results, and when the team celebrate their successes Abby loses her inhibitions - and faces some bitter regrets

 
Season 14 Episode 8
Coming Home Abby's attitude begins to have a negative effect on staff morale. Neela's intern displays an impressive amount of capability during a critical situation. Morris acts as adjudicator when participants of a cheese-rolling contest come to blows, and Moretti receives an upsetting phone call about his son

 
Season 14 Episode 9
Skye's the Limit The Chief of Staff makes an unpopular decision, causing uncomfortable changes to be made in the Emergency Room. Abby decides to confront old demons distancing her from friends and family, but her silent struggle leaves Luka feeling undervalued. Meanwhile, romance blooms between two doctors

 
Season 14 Episode 10
300 Patients In the 300th episode of the popular medical drama, a distraught husband rushes into the ER fearing for the fate of his wife. As they try to help, Sam, Pratt and Morris discover a link between a 61-year-old woman and a teenager suffering from Down's syndrome. Guest starring Peter Fonda

 
Season 14 Episode 11
Status Quo Jeanie Boulet's son Carlos is admitted after a head injury, and a lesion in his brain suggests he may have contracted Aids. Questions of fidelity are asked when a female soldier with a broken leg is discovered to be pregnant, and Morris and Harold compete for the affections of Neela's cousin. Gloria Reuben guest stars

 
Season 14 Episode 12
Believe the Unseen Abby is cleared to return to work after a stay in rehab. A firefighter is admitted to the ward after rescuing two children, one of whom Abby suspects is suffering from a degenerative eye disorder, and Harold's relationship with Neela's cousin inspires him to feel more confident in his abilities

 
Season 14 Episode 13
Atonement A prison doctor saves the son of a man he once executed, and seeks forgiveness from the family he divided. Neela participates in the ortho versus surgery hockey match, but discovers the surgeons aren't playing fair. Pratt backs off when Bettina tries to advance their relationship

 
Season 14 Episode 14
Owner of a Broken Heart Pratt faces off with a new doctor when they disagree on how to teach the interns, and Gates treats a young woman with a serious heart condition. Abby heads to Croatia, wondering how to break the news of her misfortunes to Luka. Meanwhile, Sam receives a harsh reminder that Julia has moved on

 
Season 14 Episode 15
As the Day She Was Born Having just completed an all-night shift, Neela struggles to treat a woman with a torn aorta. Meanwhile, Tony's stepdaughter Sarah faces another crisis when her grandfather collapses during an air-hockey game, and Sam becomes unsure of Tony's intentions when he gives her flowers. The Sopranos' Aida Turturro guest stars

 
Season 14 Episode 16
Truth Will Out Luka struggles to forgive Abby for her indiscretion and Neela finds out the patient who underwent emergency surgery on her aorta has developed an infection. Meanwhile, a teenager is brought in after being attacked on a railway platform and Abby discovers he has a serious illness that could threaten his life. The Sopranos' Aida Turturro guest stars

 
Season 14 Episode 17
Under Pressure Pratt decides to fight for his relationship with Bettina, and Neela discovers a young couple she is treating are hiding a dark secret. Meanwhile, Abby fears that Luka has given up on their marriage. Mekhi Phifer and Parminder Nagra star

 
Season 14 Episode 18
Tandem Repeats Laverne and Brenner's work relationship begins to deteriorate after they spend the night together and Pratt brings Betina back to her apartment, where they are greeted by a crowd of people. Mekhi Phifer and Parminder Nagra star

 
Season 14 Episode 19
The Chicago Way A drunk and mysterious patient threatens the safety of everyone at County General. Kovac is surprised to receive a visit from Moretti and Gates worries his relationship with Sam may not be as serious as he thought. Last in series, guest starring Steve Buscemi, alongside Goran Visnjic and Stanley Tucci

 
Season 15 Episode 1
Life After Death In the final season of the medical drama set in a Chicago hospital, Abby awakes after the ambulance explosion and rushes to check on the other victims, but misdiagnoses a mother and daughter. Meanwhile, Morris and Neela struggle to cope with the number of casualties. Maura Tierney and Scott Grimes star

 
Season 15 Episode 2
Another Thursday at County The doctors are unsure what to make of their tough new chief as they struggle to come to terms with the death of Pratt. Gates and the new interns find themselves in danger when they treat a bio-terrorist, while Neela receives help from an unlikely source as she tries to get Dubenko back on the surgery staff. US medical drama, starring Angela Bassett and Parminder Nagra

 
Season 15 Episode 3
The Book of Abby Abby's first day as an attending does not go as expected. She argues with the new chief over how to treat a gunshot victim, helps Sam at her disciplinary board and upsets Neela by not sharing important news with her. Events of the shift force the doctor to reconsider her future at County

 
Season 15 Episode 4
Parental Guidance Brenner asks for a favour after his organised protests enable Dubenko to return to work. A gymnast arrives at the hospital displaying injuries consistent with a fall, but Banfield and Gates believe a family member might be to blame. Meanwhile, Sarah neglects to ask permission when she gets her tongue pierced

 
Season 15 Episode 5
Haunted Brenner treats two teenagers involved in a school fight, one who has been stabbed and the other whose nose will not stop bleeding, and ends up being deeply affected by the truth behind their confrontation. Sam feels belittled by Gates's teaching methods with Daria, and Neela and the rest of the staff are pleased to receive a surprise visitor. Drama, starring David Lyons and Linda Cardellini

 
Season 15 Episode 6
Oh, Brother Chaz begins his time as a med student and Morris takes him under his wing, but showing him some risky procedures endangers a patient's life. Elsewhere, Banfield upsets Neela when she questions her authority in front of an intern, and Gates asks Sam and Alex to move in with him

 
Season 15 Episode 7
Heal Thyself When Cate becomes involved in a desperate incident by the lake, she is reminded of Mark Greene's efforts to save her son. Meanwhile, Gates tries to pull strings to help a homeless veteran. Featuring an appearance by former cast member Anthony Edwards

 
Season 15 Episode 8
Age of Innocence Neela's student causes the entire surgical staff to be sued. Brenner fights with a patient before making a confession to Morris, Tony upsets Sam while searching for a homeless veteran, and a couple suffer injuries when an arson attack is made on their home

 
Season 15 Episode 9
Let It Snow Neela has to defend her actions in court after the death of a patient. Sarah and Alex defy Sam by going to a party, but their decision has dire consequences, while a snowstorm leaves Banfield and Morris stranded at a Nebraska medical conference. Drama, starring Parminder Nagra

 
Season 15 Episode 10
The High Holiday Morris receives a package from an unlikely source, and Sam worries over the prospect of Alex being removed from the ventilator. Meanwhile, a woman with a high-risk pregnancy faces deportation, and an old friend pays a surprise visit

 
Season 15 Episode 11
Separation Anxiety Two brothers are brought into the ward after a drug deal goes awry, and tension continues to build between Gates and Sam - coming to a head when Tony is the last to know about Alex being released. Meanwhile, Neela has to tell a young girl that she must undergo an operation, prompting the doctor to consider a career path in pediatric surgery

 
Season 15 Episode 12
Dream Runner Neela has a recurring dream about trying to save a girl with sickle-cell anaemia. As she relives the day and makes different decisions, she sees an old colleague, talks to Ray, welcomes Brenner back from Australia and helps Gates and Banfield deal with a patient who jumped out of a window during his sleep. Guest starring Alex Kingston

 
Season 15 Episode 13
Love Is a Battlefield Morris deals with a 16-year-old girl who was involved in a bicycle accident and is now behaving in an agitated manner. Sam ends her relationship with Gates when she finds out he slept with Daria, and Neela struggles to keep her composure when Brenner returns from Australia. Meanwhile, an elderly couple are admitted to the ER after the wife has a fall at home. Medical drama, starring Scott Grimes

 
Season 15 Episode 14
A Long, Strange Trip Gates and Morris attend to an elderly man who was assaulted on the street, while the treatment of a cancer sufferer causes a dispute between Brenner and Dubenko. Meanwhile, Sam's sister pays an unexpected visit, and Dr Morgenstern returns to help a former mentor who is seriously ill. Drama, starring John Stamos and Scott Grimes

 
Season 15 Episode 15
The Family Man A woman is involved in a car accident in the ambulance bay, and Brenner is left in charge of finding someone to care for her daughter while she recovers. Gates deals with an elderly patient who is facing death but feels that treating his condition will merely delay the inevitable, and Morris makes a favourable impression on Claudia's family. Drama, starring David Lyons and John Stamos

 
Season 15 Episode 16
The Beginning of the End Cate's determination to have a baby leads her to devise a plan involving egg donation, but Russell is reluctant to support the idea. Gates treats an eccentric patient who may have been poisoned by wild mushrooms, while Morris deals with a suspicious case of a teenager injured in a brawl. Dr Carter makes a surprise return to inquire about work, and Neela performs a traumatic heart transplant

 
Season 15 Episode 17
T-Minus-6 The Banfields fall out with another couple when they attend a session at an adoption agency, while Carter has to familiarise himself with the new procedures and medication introduced during his absence. Sam finds communication difficult when her estranged mother is brought into the ER and Neela is frustrated by Brenner's inability to talk about serious issues

 
Season 15 Episode 18
What We Do A camera crew arrives at the hospital to interview members of the ER staff as part of a documentary. A detective is brought in with gunshot wounds, Carter's condition deteriorates, and Neela worries about the lack of communication between her and Brenner. Medical drama, starring Noah Wyle

 
Season 15 Episode 19
Old Times Benton returns to the hospital to visit Carter in his time of need as he waits for a kidney transplant. Meanwhile, Dr Ross has to persuade a grieving woman in Seattle to donate the organs of her grandson after his sudden death. Guest starring Susan Sarandon

 
Season 15 Episode 20
Shifting Equilibrium Neela is forced to prove her worth when she clashes with Dubenko on how to proceed with two surgical cases. Meanwhile, Brenner is given an insight into his painful childhood. Medical drama, starring Parminder Nagra and David Lyons

 
Season 15 Episode 21
I Feel Good Doctors and nurses from the ER help out at a camp for children who have had open-heart surgery, and Morris and Brenner make a huge impact. Dr Banfield and her husband have their dreams of adoption crushed when a mother returns to collect her abandoned child. Medical drama, guest starring Tom Arnold

 
Season 15 Episode 22
And in the End An extended edition to mark the final episode of the long-running drama. Old friends return to show their support at the opening of a new medical facility for the underprivileged, and Sam receives a special gift for her birthday. Gates helps a teenager suffering from alcohol poisoning after playing a drinking game, while Carter tries to save a mother in labour with twins. Linda Cardellini stars. Last in the series