Sky History HD Saturday

Theorists speculate about whether mysterious metal artifacts could provide physical evidence of extraterrestrials visiting Earth in the distant past

Quaint mansion RAF Rudloe Manor in Wiltshire, a suspected epicentre of British research into UFOs since the Second World War

Bret and Ivy bust through sheets of lake ice to ferry critical equipment to their cabin by boat. Lauro and Virginia use the dog team to haul fresh cut timber for a log cabin build

Lauro guides his dog team through frozen wilderness to reach Neil at a remote trapping camp. Bret preps for the upcoming season by building and boiling his gear

Armed with new information about the elusive stakes in the swamp, the team redoubles their search efforts with thrilling results

Brandi is relieved after picking up a locker in Placentia. Rene goes to the office to quickly flip his money and Kenny struggles just to get through his unit

Lisa gets clinical with her find, forcing her to take a closer look. The new guy pays heavily for a unit, while Brandi and Rene struggle

Brandi makes the best of a bad situation in Fullerton. Ivy snipes one locker and grabs a second, knocking out the competition

With temperatures soaring in Moreno Valley, Kenny fights the heat by providing everyone with popsicles. Rene brings along his daughter, Tatiana

It's a scorcher in Banning, making Kenny dress for the occasion hoping to channel a Caribbean breeze. Rene is on the hunt for hot collectibles

The blazing heat in Riverside inspires Lisa and Kenny to break out the parasols. Dusty wears his intuition on his sleeve and Ivy releases the hounds

The team investigates the grisly discovery of sliced-open human skulls and explore their connection with a hospital, a celebrated surgeon, and the crime of body-snatching

Tori Herridge and a team of scientists examines remains found at a Roman cemetery in Amesbury, Wiltshire, including a body that was stabbed and beheaded after it was buried

Tori Herridge and a team of scientists investigate when the remains of a young woman from the Bronze Age are found during routine roadworks on the A9 in Scotland

Tori Herridge and a team of scientists visit the most excavated monastic site in Europe, tucked away in the corner of an industrial park in Runcorn, Cheshire

Guy Walters and Justine explore bunkers, fortresses and wild legends in Italy, where history, humour and myth collide

Dan Jones explores the history of York Castle, built on the orders of William the Conqueror and once the regional seat of British government

Dan Jones explores the history of Leeds Castle in Kent, from its origins as a royal Saxon family's manor to its current ownership by a specially created charity

The story of the hunt for the men behind the Gunpowder Plot, as Robert Catesby, Thomas Wintour and Thomas Percy sought desperately to ignite a Catholic rebellion

The story of the hunt for the men behind the Gunpowder Plot, as Robert Catesby, Thomas Wintour and Thomas Percy desperately sought to ignite a Catholic rebellion

With the king's men not far away, the fugitives barricade themselves into Holbeche House, making it as secure as possible.

Vicky McClure and her husband, historian Jonny Owen, travel the UK exploring historic, culturally significant crimes that have changed the face of modern Britain

An instance in which a mother and child fled in terror as the entire roof of a building mysteriously ripped off and flew towards them

A Vermont woman films a huge moving object in Lake Champlain. Deep in Russia, an enormous explosion is captured on a car's dash cam

An explorer at a Mayan sacrificial site is attacked by an underwater fog, thousands of fish jump to their deaths, and a UFO is spotted in the Los Angeles skies

Dan Jones explores the history of York Castle, built on the orders of William the Conqueror and once the regional seat of British government

Dan Jones explores the history of Leeds Castle in Kent, from its origins as a royal Saxon family's manor to its current ownership by a specially created charity

Documentary series focusing on six unfathomable mysteries - from a gigantic tsunami that never hits land, to a sinister blood-red lake in war-torn Baghdad