Season 1 Episode 2
Don't Look Back Policeman Matt Parkman discovers he is the only person at the scene of a crime who can hear the muffled cries of a girl, cheerleader Claire receives unwanted attention and Peter comes close to learning the truth about his brother Nathan. Elsewhere, Hiro finds a comic book starring himself and goes in search of the author, while Niki attempts to piece together what happened during her blackout. Fantasy drama, starring Greg Grunberg, Hayden Panettiere and Ali Larter

 
Season 1 Episode 3
One Giant Leap Claire attempts to restore normality after a date takes a tragic turn, while Hiro convinces Ando they must travel to America to save the world. Matt is given a job with the FBI to help track down Sylar, a sinister force leads Niki into the desert, and Peter reveals his true feelings for Simone at a fundraising event for his brother. Starring Masi Oka, Sendhil Ramamurthy and Noah Gray-Cabey

 
Season 1 Episode 4
Collision The paths of the heroes cross in Las Vegas, where Hiro exploits his powers to help Ando win in a casino and Niki encounters Nathan. Meanwhile, Claire takes revenge on school quarterback Brody after their date and Matt's mind-reading abilities are tested by two men claiming to be experts in the field

 
Season 1 Episode 5
Hiros The police visit Niki in search of information about her fugitive husband DL Hawkins, while Matt puts his mind-reading skills to good use in a bid to improve his marriage. Hiro and Ando find themselves out of their depth in Las Vegas, and Peter receives a life-changing message from a surprising source

 
Season 1 Episode 6
Better Halves Niki has a surprise visitor and later confronts her mirror image, while Hiro and Ando find their journey to New York delayed when they land themselves in trouble in Las Vegas. Elsewhere, Claire meets her biological parents in an attempt to shed light on her powers, and Hiro sends a vital message to Isaac

 
Season 1 Episode 7
Nothing to Hide Hiro conquers his doubts over his heroic powers, while Claire uncovers the truth behind a missing video tape. Niki confides in a friend when her son becomes embroiled in a crisis and Peter assists Nathan and his wife in their campaign to win the election

 
Season 1 Episode 8
Seven Minutes to Midnight Mohinder is plagued by strange visions of a mysterious boy when mourning his father in India. Hiro and Ando meet an interesting person during their trek to New York, while Matt and Audrey follow a promising lead in their search for the elusive Sylar, and are surprised by where it takes them. Masi Oka and Sendhil Ramamurthy star

 
Season 1 Episode 9
Homecoming Nathan is horrified by what Isaac's painting depicts and, as the artist's ominous premonitions begin to manifest themselves at Claire's homecoming, Peter must race against time to save the cheerleader from Sylar's insidious evil. Drama, starring Hayden Panettiere and Masi Oka

 
Season 1 Episode 10
Six Months Ago Niki's father pays her a visit which brings out her bad side, Hiro attempts to change the future of somebody close to him, and Claire joins the cheerleading squad in a six-month flashback to when the heroes discovered their powers. Fantasy drama, starring Ali Larter, Hayden Panettiere and Masi Oka

 
Season 1 Episode 11
Fallout Niki is forced to make a difficult decision to protect her family, while Matt and Audrey step up their hunt for Sylar - not realising he has already been captured by Mr Bennet. Peter is held in police custody after being mistakenly arrested in Odessa and Hiro races to save Claire. The meaning behind Isaac's painting of a nuclear bombing becomes clearer - with major consequences for one hero

 
Season 1 Episode 12
Godsend Peter awakens from his coma following a disturbing vision, and his journey to uncover the truth leads him to meet a new hero. Claire struggles to make sense of her life and Niki faces the consequences of her decision to turn herself in, while Hiro searches for the mysterious sword that will restore his power. Christopher Eccleston guest stars

 
Season 1 Episode 13
The Fix Claude begins to teach Peter how to use his powers, and Hiro is pursued by a mysterious figure as he continues his quest to find the sword. Meanwhile, Claire has some success in the hunt for her birth mother and Niki is offered help from a psychiatrist. George Takei and Christopher Eccleston guest star

 
Season 1 Episode 14
Distractions Hiro attempts to make his father and sister understand his newly discovered powers, and Claire's search for her birth mother leads her to a Texas trailer park. Meanwhile, Peter's faith in those closest to him is tested when Claude shows him how to harness his abilities. Christopher Eccleston, George Takei and Jessalyn Gilsig star

 
Season 1 Episode 15
Run! Matt's private security business gets off to a rough start when he struggles to deal with an abrasive client. Life at home deteriorates for Claire, while Nathan confronts a secret from his past and Suresh finds another person on the list. Drama, starring Hayden Panettiere and Sendhil Ramamurthy

 
Season 1 Episode 16
Unexpected Peter is shocked to discover he and Claude may have been betrayed by someone close to them, and Hiro is forced to make a decision about the mission. Matt's world is thrown into chaos by the arrival of a woman with strange mental abilities, and Claire struggles to deal with her anger. Milo Ventimiglia stars

 
Season 1 Episode 17
Company Man Matt Parkman and Ted Sprague arrive in Texas to learn more about Mr Bennet, and take the entire family hostage - resulting in an explosive showdown. Claire discovers the truth about her adoptive father and powers. Hayden Panettiere and Jack Coleman star

 
Season 1 Episode 18
Parasite Nathan finally meets the mysterious and powerful Linderman. Suresh and Sylar make progress with the list and more horrors surface in Isaac's paintings. Meanwhile, Claire goes on the run and new hero Candice Wilmer appears. Fantasy drama, guest starring Malcolm McDowell

 
Season 1 Episode 19
.07% Sylar's murderous rampage continues and leads to a confrontation with Peter, while Nathan makes important decisions based on Linderman's shocking revelations. Thompson uses every means possible to hunt for Claire, and Hiro's determination to save the world grows stronger in the face of adversity. Eric Roberts guest stars

 
Season 1 Episode 20
Five Years Gone The future holds disappointment for Hiro when he discovers that people with secret powers are considered terrorists. As the time-traveller prepares for a showdown with the President he confronts some familiar faces who have changed over the years

 
Season 1 Episode 21
The Hard Part Following their trip into the future, Hiro and Ando become even more determined to save the world, and Nathan makes plans to win the election. Sylar decides to visit his mother, while Thompson introduces a new person into the organisation

 
Season 1 Episode 22
Landslide Hiro receives information regarding his family as he prepares to face Sylar to the death. Peter and Ted make plans to leave New York in an effort to avoid the explosion, while Nathan's mother offers him advice about Linderman. Eric Roberts and George Takei guest star

 
Season 1 Episode 23
How To Stop An Exploding Man The extraordinary group face moments of peril and pain in New York's Kirby Plaza as Isaac's predictions for the future begin to unfold before them. Drama, starring Hayden Panettiere and Masi Oka. Last in series

 
Season 2 Episode 1
Four Months Later The award-winning show returns four months after Peter and Sylar's showdown in New York City. Hiro remains in the past, while Claire and her family have started a new life in California. New Heroes emerge, including siblings Alejandro and Maya who are on the run in Mexico, and Monica Dawson in New Orleans. Masi Oka and Hayden Panettiere star

 
Season 2 Episode 2
Lizards Kensei's power is revealed, while Suresh discovers the location of the Haitian and manages to cure him. Hiro tries to minimise the damage caused by his journey into the past, and Peter joins a group of Irish gangsters who are familiar with his history. Meanwhile, Matt searches for clues to the identity of Mr Nakamura's killer, and West learns of Claire's extraordinary abilities. Drama, guest starring Stephen Tobolowsky

 
Season 2 Episode 3
Kindred Suresh finds an undiscovered Isaac Mendez painting portraying someone's death. Maya breaks Alejandro out of a Mexican jail, and Hiro discovers something about Kensei. Meanwhile, Niki and Micah flee Las Vegas in an attempt to outrun their past, while Claire joins West on a trip. Drama, starring Hayden Panettiere

 
Season 2 Episode 4
The Kindness of Strangers Monica develops new abilities with Micah's help and Alejandro continues to help his sister reach the US. Meanwhile, Matt puts Molly's life in jeopardy when he asks her to locate the man in her dreams, and Claire becomes suspicious of her father. Drama, starring Hayden Panettiere, Adair Tishler and Dana Davis

 
Season 2 Episode 5
Fight or Flight Matt visits his father Maury and takes along Nathan as they search for answers regarding Molly's nightmare and the death threats received by Angela and Kaito. Meanwhile, a new hero appears and attempts to find Peter. Kristen Bell, Alan Blumenfeld and Adrian Pasdar star

 
Season 2 Episode 6
The Line Peter searches for answers about his true identity with Caitlin, who seeks to avenge her brother's death. Hiro finds himself in a difficult situation as he struggles to control his feelings for Yaeko, and West convinces Claire to stand up for herself. Milo Ventimiglia, Hayden Panettiere, Masi Oka and Katie Carr stars

 
Season 2 Episode 7
Out of Time Peter and Caitlin discover the shocking consequences of the Shanti virus as they teleport into the future. West is stunned to learn the identity of Claire's father, while a group of heroes confront the Nightmare Man. Milo Ventimiglia, Hayden Panettiere and Katie Carr star

 
Season 2 Episode 8
Four Months Ago The mystery surrounding Peter's appearance in Ireland is revealed in an episode exploring the events of the past four months. Nathan, Niki and DL's back stories are recalled, while Maja and Alejandro go on the run from the authorities. Milo Ventimiglia, Adrian Pasdar and Dania Ramirez star

 
Season 2 Episode 9
Cautionary Tales Noah Bennet causes an argument with Claire when he prepares to move his family because the Company has found them. Matt attempts to master his new mental abilities, while Hiro returns to the present to find out his father is dead - so he travels back in time to prevent his murder. Masi Oka and Hayden Panettiere star

 
Season 2 Episode 10
Truth and Consequences Peter and Adam learn that the Shanti virus is located in Texas after they confront Victoria Pratt, while Hiro continues to pursue his father's murderer. Maya is forced to decide whether she should travel to New York without her brother and Claire deals with the aftermath of her dad's death. Guest starring Joanna Cassidy, with David Anders and Masi Oka

 
Season 2 Episode 11
Powerless Maya is shocked when she learns the truth about Sylar's past as they ask Mohinder for help. Micah pleas for his mother assist him in rescuing Monica after she was kidnapped by a gang and Peter faces a difficult decision when he is confronted by Hiro. Masi Oka, Zachary Quinto and Ali Larter star

 
Season 3 Episode 1
The Second Coming Moments after shots ring out, the identity of Nathan's assassin and the reasons why the Texas conference had to be cut short are revealed. Peter and Matt are thrown into unexpected and uncharted territory, while Sylar decides a visit to Claire could give him a boost. Elsewhere, Hiro and Ando are charged with safeguarding a dangerous family secret and Suresh makes a breakthrough that could change the world

 
Season 3 Episode 2
The Butterfly Effect Sylar, freshly armed with his formidable arsenal of abilities, wages a one-man war against the Company's main facility - but his explorations of the mysterious Level Five reveal more than he bargained for. Meanwhile, Angela clashes with a much-changed Peter over how to avert a worldwide catastrophe and Claire discovers something unexpected about her abilities. Zachary Quinto and Milo Ventimiglia star

 
Season 3 Episode 3
One of Us, One of Them When four villains lay siege to a bank, Angela sends HRG and her dangerous new weapon after them. As Peter tries to avert a cataclysmic future, Hiro and Ando trace Daphne to Germany - but fall foul of the Haitian. Tracy Strauss leaves Washington in search of answers about Niki, Claire asks Meredith to teach her how to fight, and the results of Suresh's experiment take him by surprise

 
Season 3 Episode 4
I Am Become Death Peter must embrace a dangerous ability to prevent a cataclysmic ending to a future where almost everyone has powers. After allowing Angela's half of the formula to be stolen, Hiro and Ando set out to unmask the villain who hired Daphne, seeking help from an unlikely source. As Noah gets rid of his new partner, Claire hits the road in pursuit of an enemy from her dad's old files. Meanwhile, a romance develops between two heroes, and Linderman and Molly return

 
Season 3 Episode 5
Angels and Monsters Claire tries to take down her first target - an escapee who can create black holes - armed with Noah's old files and a taser. Peter flees from the death and destruction in the future, and realises how much the experience has changed him. Frustrated that his contact with Adam failed to get him closer to the formula, Hiro befriends Daphne and new associate Knox as his quest continues. Meanwhile, Suresh puts Maya in trouble by attempting to correct research errors

 
Season 3 Episode 6
Dying of the Light Knox and Daphne are impressed by Hiro's ruthlessness and bring him to Pinehearst Industries for an assignment. With Angela and the Company paralysed, Peter seeks answers from the rival organisation, but a meeting with its founder will change him for ever. Claire and her mother try to free Meredith from the clutches of escaped villain Doyle, who can take mental and physical control of others. Nathan and Tracy visit Suresh, hoping he can shed light on the origin of their abilities

 
Season 3 Episode 7
Eris Quod Sum Nathan and Tracy face a fight for their lives after being cornered and trapped by a monstrous Suresh as he tries to keeps his test subjects under control - and Matt has his own problems when Daphne is sent to kill him. Elle returns with a shock for Claire, while Angela uses Sylar to rescue Peter from Pinehearst. Hiro questions African precognitive Usutu's advice on how to battle his gathering opponents

 
Season 3 Episode 8
Villains Hiro goes into the past to explore what turned Arthur Petrelli, Sylar and Flint into villains. Beginning by following Arthur, he discovers why the once-respected businessman created Pinehearst. Then, a scene unfolds where a guilt-ridden Sylar might have stopped his murderous pursuit of power. Finally, under the wing of Company man Thompson, agent-in-training Meredith watches her new life go up in smoke after the arrival of her brother Flint

 
Season 3 Episode 9
It's Coming After a pre-emptive strike against Hiro and Ando in Africa, Arthur orders Knox and Flint to hunt down his son Nathan and Claire. At Pinehearst, Sylar has a charged confrontation with Elle, while Suresh begins testing his new, combined super-power formula. With the others dead, injured or on the run, Matt tries to wake Angela

 
Season 3 Episode 10
The Eclipse - Part One Part one of two. After reuniting Sylar and Elle, Arthur orders the pair to bring Claire to him. Matt, Hiro and Ando follow Daphne to her home in Georgia to discover what she has been hiding. As an eclipse plays havoc with everyone's powers, Peter and Nathan travel to Haiti in search of the Haitian - the only man capable of stopping their father from destroying the world

 
Season 3 Episode 11
The Eclipse - Part Two Part two of two. As the eclipse continues to create chaos, Sylar and Elle face the wrath of a vengeful Noah. In Haiti, Peter and Nathan join forces with the Haitian to battle his brother Baron Samedi, while Ando, Sam and Frack work to restore Hiro's memory with the help of the 9th Wonders comic-book

 
Season 3 Episode 12
Our Father As their battle against Arthur continues, Hiro and Claire travel 16 years back in time to when Kaito gave her to Noah. Peter and the Haitian team up to finish off Arthur for good, but Sylar slows their efforts. Meanwhile in the lab, Suresh has a breakthrough with the formula, which could change everything

 
Season 3 Episode 13
Dual In the aftermath of the showdown against Arthur, the Petrelli brothers find themselves battling each other - and Nathan makes a move that will have global repercussions. Meanwhile, a face-off ensues when Sylar holds Claire, Noah, Meredith and Angela hostage at Primatech. Ando, Matt and Daphne continue their efforts to rescue Hiro - and Suresh may be their only hope. Starring Milo Ventimiglia, Adrian Pasdar and Hayden Panettiere

 
Season 3 Episode 14
A Clear and Present Danger The fantasy drama returns with Volume Four: Fugitives picking up months after the fall of Pinehurst and Primatech. Suresh has gone back to driving taxis, while Daphne and Matt are trying to live as an ordinary couple. But Claire's routine is shaken up when she uncovers Nathan's deadly plot to capture those with abilities - and a powerless Hiro is the first victim when he is dragged away by hooded men. Elsewhere, Sylar searches for his real parents. Damages actor Zeljko Ivanek guest stars

 
Season 3 Episode 15
Trust and Blood As Nathan continues to hunt down all those with abilities, Matt paints a series of prophetic images that reveal the tragic fate of someone close to him. Sylar encounters an outcast while searching for his father and discovers the stranger has information and an ability of his own

 
Season 3 Episode 16
Building 26 Homeland Security is instructed by the president to investigate Nathan's nefarious plot, but it may already be too late to save Sylar and Luke from the agents hunting them down. Claire has to protect a young hero from her own father as Noah sets out to capture him, while Matt's prophetic images lead Hiro and Ando into India. Adrian Pasdar, Zachary Quinto and Hayden Panettiere star

 
Season 3 Episode 17
Cold Wars Matt uses his powerful form of interrogation to extract the truth from hostage Noah, who reveals how he became involved with Nathan's government plot to capture all the heroes. The mind-reader's discoveries then bring Peter face to face with the Hunter. Fantasy drama, guest starring Zeljko Ivanek, with Greg Grunberg, Jack Coleman and Milo Ventimiglia

 
Season 3 Episode 18
Exposed Using a tip-off from Rebel, Matt and Peter head to Building 26 to rescue Daphne and recover files that will expose the government's nefarious plans. Meanwhile, Claire finds help from an unlikely source in smuggling Alex out of the city, Sylar is led to the truth about his mother and the Hunter puts his explosive plot into action. Greg Grunberg, Milo Ventimiglia and Hayden Panettiere star

 
Season 3 Episode 19
Shades of Gray Sylar encounters his long-lost father (guest star John Glover) but the reunion proves to be what he least expected. Claire must decide whether to act on a tip from Rebel and help sworn enemy Eric Doyle to evade capture. Meanwhile, as the Hunter plans to uncover the Petrelli family's secrets and take control of Nathan's operation, Matt finds himself in the spotlight. Zachary Quinto, Hayden Panettiere and Greg Grunberg star

 
Season 3 Episode 20
Cold Snap Noah convinces the Hunter to release Tracy from Building 26 in the hope that she will lead them to Rebel. Angela evades capture and turns to an old friend for help, while Hiro and Ando continue with their mission in Los Angeles to protect the newest hero. Jack Coleman, Ali Larter and Masi Oka star

 
Season 3 Episode 21
Into Asylum Nathan's ability has been exposed and he loses control of the operation, forcing him to hide out in Mexico with Claire. Meanwhile, the Hunter spearheads the government's nefarious scheme and teams up with an unlikely partner to try to bring down all the heroes. Angela and Peter seek refuge in a church and begin to mend their broken relationship. Adrian Pasdar, Hayden Panettiere, Cristine Rose and Milo Ventimiglia star

 
Season 3 Episode 22
Turn and Face the Strange With the Hunter at the helm of the government operation, someone close to him is put in the line of fire, while Noah's marriage is pushed to breaking point. On their road trip, Hiro and Ando make a special delivery for Matt, and Angela unearths the demons of her past. Starring Zeljko Ivanek, Jack Coleman and Masi Oka

 
Season 3 Episode 23
1961 Angela reveals the dark secrets that have haunted her for years as Nathan, Peter, Claire and Noah help to uncover her past. Meanwhile, Suresh learns of his father's involvement in a long-forgotten government operation. Cristine Rose, Adrian Pasdar, Milo Ventimiglia and Hayden Panettiere star

 
Season 3 Episode 24
I Am Sylar Sylar has an unexpected identity crisis as his ability takes its toll on him. Hiro and Ando take measures to bring down Building 26, while Matt's new-found fatherhood changes his priorities. Elsewhere, Nathan sets a plan in motion to right the wrongs of his government operation. Zachary Quinto, Masi Oka, James Kyson Lee and Greg Grunberg star

 
Season 3 Episode 25
An Invisible Thread The fight to stop Sylar has consequences that will change everything as Nathan tries to keep him from meeting the US president. Meanwhile, Hiro learns there are repercussions for regaining his ability, and Matt is forced to go to extraordinary lengths to protect his future with his family. Michael Dorn guest stars, with Zachary Quinto, Adrian Pasdar, Masi Oka and Greg Grunberg. Last in the series

 
Season 4 Episode 1
Orientation New series. Angela tries to restart the Company, but Noah, Peter and Matt are intent on resuming their normal lives. Claire starts college and must decide how much her past will affect her future, Hiro and Ando set up a `Dial a Hero' firm back home in Japan, and Tracy targets Danko and his men. Meanwhile, a new threat arrives in the form of a mysterious canrival. Fantasy drama, starring Hayden Panettiere

 
Season 4 Episode 2
Jump, Push, Fall Hiro meets Samuel at the carnival 14 years in the past and cannot help but make a subtle change to history. Noah finds a clue relating to Danko's murder when Tracy calls him to the scene, before joining forces with Peter to learn more about the victim and his killer. Back at university, Claire and Gretchen refuse to believe the police's explanation of what happened to Annie

 
Season 4 Episode 3
Ink Claire shares her secret with Gretchen and invites her to be room-mates. Sylar continues to cause chaos in Matt's mind while he and his partner seek evidence against a drug lord. Samuel travels to New York, where he tricks his way into Peter's life, and a deaf filing clerk comes to terms with her new-found abilities. Fantasy drama, starring Jack Coleman, Hayden Panettiere and Milo Ventimiglia

 
Season 4 Episode 4
Acceptance While Hiro is trying to stop a colleague from committing suicide, Ando convinces him to tell his sister that he is terminally ill. Tracy struggles to control her powers, and finds she is no longer able to deal with the indignities of her former job. Meanwhile, Nathan's mother helps him regain some of his old memories. Drama, starring Masi Oka, Ali Larter and Adrian Pasdar

 
Season 4 Episode 5
Hysterical Blindness Samuel prepares for the arrival of a new addition to his family, turning a deaf ear to Lydia's warnings of the possible consequences. Peter struggles to connect with Emma, even though she clearly wants nothing to do with him, and a different side of Sylar emerges as he desperately tries to remember the person he used to be

 
Season 4 Episode 6
Tabula Rasa Sylar sets out to discover his true identity, assisted and encouraged by Samuel. Meanwhile, Peter tries to locate someone capable of saving Hiro - with a little help from Noah, who manages to track down a boy with healing powers but finds him reluctant to help

 
Season 4 Episode 7
Strange Attractors Noah and Tracy try to help a teenager who has suffered many hardships in life, and Matt is driven to extreme measures as Sylar continues to make trouble for him. Meanwhile, Claire and Gretchen are tormented by their new sorority sisters at Arlington University. Drama, starring Jack Coleman and Ali Larter

 
Season 4 Episode 8
Once Upon a Time in Texas Hiro travels three years into the past, hoping to save Charlie from death at the hands of Sylar - but Samuel's self-serving intervention complicates an already seemingly impossible task. Elsewhere, Noah's past with his Primatech partner is revealed

 
Season 4 Episode 9
Shadowboxing Peter uses his new-found ability to help Emma accept her new life and Sylar steps up his attempts to gain full control over Matt's body. Meanwhile, Noah intervenes as Claire tries to discover who is behind the attacks on Gretchen and Annie - only to realise he may he may be somehow responsible

 
Season 4 Episode 10
Brother's Keeper Matt continues his battle to resist Sylar's mental domination, and Tracy increasingly begins to lose control of her ability. Meanwhile, Samuel learns the full extent of his powers and takes dangerous measures to ensure he achieves maximum potential

 
Season 4 Episode 11
Thanksgiving Noah invites Claire over for Thanksgiving, but the festivities are spoiled by the arrival of his ex-wife Sandra, who turns up with a new boyfriend in tow. Elsewhere, the Petrellis are caught off guard by the arrival of a surprise dinner guest, and Samuel holds Hiro captive as Lydia tries to discover one of the carnival's secrets

 
Season 4 Episode 12
The Fifth Stage Peter confronts Sylar and discovers that extreme measures are necessary to stop him. Noah receives unexpected visitors and Claire's voyage of discovery takes her to an unexpected destination. Meanwhile, Samuel's sinister plan enters its final phase

 
Season 4 Episode 13
Upon This Rock Claire becomes increasingly suspicious of Samuel's motives, and Hiro returns to Japan, where he urges Ando to help him rescue Mohinder from a psychiatric institution. Peter struggles to cope with Nathan's traumatic death, and Noah launches his plan to destroy the carnival, helped by Edgar. Drama, starring Hayden Panettiere

 
Season 4 Episode 14
Let It Bleed Sylar seeks out the carnival to obtain a batch of powers, but discovers a new weakness. Meanwhile, Claire and Peter try to resolve their emotions at Nathan's wake, and Noah and Lauren capture Edgar in an effort to determine what he knows. Starring Zachary Quinto

 
Season 4 Episode 15
Close to You Noah enlists Matt to help him defeat Samuel, and sets a cunning trap - using Vanessa as bait. Hiro and Ando take extreme measures to break Dr Suresh out of the mental institution where he is being held, and Peter's mother urges him to stay away from Emma, warning that she is destined to be complicit in thousands of deaths

 
Season 4 Episode 16
Pass/Fail Hiro's life hangs in the balance as his brain tumour worsens, and he begins to experience hallucinations in which many of his past decisions are re-enacted. Meanwhile, Sylar visits Claire in search of answers, and Samuel sets out to impress his long-lost love Vanessa - with terrifying consequences. Previously seen on BBC3

 
Season 4 Episode 17
The Art of Deception Sylar pays Matt a visit, Peter tries to warn Emma that Samuel is not what he seems, and Noah begins his plan to infiltrate the carnival. Starring Zachary Quinto and Greg Grunberg

 
Season 4 Episode 18
The Wall Claire is taken aback to learn the dark secrets of Noah's past, and Lauren takes decisive action to thwart Samuel, while Peter tries to save Sylar, who has been imprisoned in his own worst nightmare

 
Season 4 Episode 19
Brave New World With Noah's life hanging in the balance, Peter and the others unite to try to prevent Samuel from killing thousands of people. Final-ever episode of the drama, starring Jack Coleman and Milo Ventimiglia. Last in the series