Sky History2 Alien Evolution: A look at the accounts of modern-day alien abductees. Plus, could the bizarre Paracas skulls discovered by Julio Tello be of extraterrestrial origin? (S8, ep 5) 2026-07-23 Expect the Unexpected: Explore a long-forgotten network of Native American earthworks, a battlefield mystery in Belgium and a mysterious blood red lake on a Greek island. (S2, ep 3) 2026-07-23 Adam, Gwen and Julie recall personal encounters with UFOs, before experts' theories are put in doubt when we learn that each individual has time missing from their encounters. (S1, ep 2) 2026-07-23 Jaws Of The Enemy: The American Navy is on the offensive and the first strike is on the Solomon Islands. Join the USS Enterprise as it supports the first American invasion. (S1, ep 3) 2026-07-23 Very Extreme Sports: Delve into the origins of sports that were once considered extreme. Games like football and baseball lacked the strict rules that govern them today. (S1, ep 4) 2026-07-23 The Forest Of Death: As the Roman Empire expands its reaches into what is now Germany, its legions are faced with ferocious Germanic tribesmen. (S1, ep 4) 2026-07-23 Secrets of the Sumerians: When the ancient Sumerians built their civilisation, they credited their gods - but were these powerful beings actually extraterrestrial visitors? (S16, ep 7) 2026-07-23 Mysteries of Scotland: Home to mysterious stone circles, stories of strange beings and reported sightings, Scotland has always been an epicentre of otherworldly phenomena. (S16, ep 8) 2026-07-23 Adam, Gwen and Julie recall personal encounters with UFOs, before experts' theories are put in doubt when we learn that each individual has time missing from their encounters. (S1, ep 2) 2026-07-23 Aliens And Robots: Experts investigate ancient tales and accounts of robots. If these sophisticated machines did exist in bygone days, what might have happened to them? (S8, ep 1) 2026-07-23 Aliens B.C: Experts investigate whether the stories of a time when gods and otherworldly beings inhabited the planet are more than mere mythology. (S8, ep 2) 2026-07-23 NASA's Secret Agenda: Experts investigate whether rocket scientist Wernher von Braun might have found inspiration in technology found at the alleged UFO crash in Roswell. (S8, ep 3) 2026-07-23 Documentary examining the unsolved murder of TV presenter and newsreader Jill Dando, who was shot outside her house in Fulham, London, in 1999. (S2, ep 2) 2026-07-23 The UFO Superhighway: With so many strange reports of UFOs, animal mutilations and more, a specific latitude north of the Earth's equator has been dubbed 'the UFO Superhighway'. (S16, ep 8) 2026-07-23 Mystery of the Stone Spheres: Mysterious ancient stones shaped into perfect spheres exist around the world - but can they provide clues about humankind's past? (S16, ep 10) 2026-07-23 Holiday Hell: The things that once represented our favourite times of year meet their demise, from Christmas trees and roller coasters, to high-end resorts and cruise ships. (S2, ep 6) 2026-07-23 Precious Cargo: The astonishing accounts of four railway journeys that changed history, including the perilous expedition that made a young Winston Churchill world famous. (S1, ep 5) 2026-07-23 In an emotional tribute, witnesses and victims' relatives look back on the murder of 16 children and a teacher at Dunblane Primary School in March 1996. (S2, ep 3) 2026-07-23 The UFO Superhighway: With so many strange reports of UFOs, animal mutilations and more, a specific latitude north of the Earth's equator has been dubbed 'the UFO Superhighway'. (S16, ep 8) 2026-07-23 Mystery of the Stone Spheres: Mysterious ancient stones shaped into perfect spheres exist around the world - but can they provide clues about humankind's past? (S16, ep 10) 2026-07-23 Water World: In a world without humans, water turns from life-giver to destroyer, flooding cities, collapsing dams and triggering ancient forces long kept at bay. (S3, ep 1) 2026-07-23 Shop 'Til You Drop: When humanity disappears, the global retail machine collapses. Malls rot and grocery stores become battlefields for rodents. (S3, ep 2) 2026-07-23 Urban Jungles: In the absence of humanity, the world's most iconic cities are reclaimed by nature, as animals roam free and fire and flood centuries of construction. (S3, ep 3) 2026-07-23 Sands of Time: From Las Vegas to Dubai's Burj Khalifa, as sand, salt and sun dismantle cities, the wastelands quietly take back the ground borrowed. (S3, ep 4) 2026-07-23 Home on the Strange: After humanity ceases to exist, the homes built, ranging from mansions to rural farmhouses, face relentless siege by fire, flood, wildlife and time. (S3, ep 5) 2026-07-24 Ocean Mysteries: Discover an underwater find from a violent past, a mysterious concrete 'ghost island' and never-before-seen tracks along the seabed. (S2, ep 4) 2026-07-24 Washington State: A new report is made every 55 hours in Washington state, which is America's highest rate of UFO sightings per capita - but why are UFOs choosing to hover here? (S1, ep 1) 2026-07-24 Bloody Santa Cruz: Follow a battle for survival in a terrible day of vicious WWII combat, when the USS Enterprise lost many of her crew and her sister ship, the USS Hornet. (S1, ep 4) 2026-07-24 Eastern Front: The decision by Hitler to send his armies east into Russia was probably the most significant of the war. (S1, ep 9) 2026-07-24 D-Day and Liberation: 6th June 1944, the day that British, US and Canadian troops were sent across the English Channel to begin the job of reclaiming continental Europe. (S1, ep 10) 2026-07-24 The UFO Superhighway: With so many strange reports of UFOs, animal mutilations and more, a specific latitude north of the Earth's equator has been dubbed 'the UFO Superhighway'. (S16, ep 8) 2026-07-24 Mystery of the Stone Spheres: Mysterious ancient stones shaped into perfect spheres exist around the world - but can they provide clues about humankind's past? (S16, ep 10) 2026-07-24 Washington State: A new report is made every 55 hours in Washington state, which is America's highest rate of UFO sightings per capita - but why are UFOs choosing to hover here? (S1, ep 1) 2026-07-24 Water World: In a world without humans, water turns from life-giver to destroyer, flooding cities, collapsing dams and triggering ancient forces long kept at bay. (S3, ep 1) 2026-07-24 Shop 'Til You Drop: When humanity disappears, the global retail machine collapses. Malls rot and grocery stores become battlefields for rodents. (S3, ep 2) 2026-07-24 Urban Jungles: In the absence of humanity, the world's most iconic cities are reclaimed by nature, as animals roam free and fire and flood centuries of construction. (S3, ep 3) 2026-07-24 In an emotional tribute, witnesses and victims' relatives look back on the murder of 16 children and a teacher at Dunblane Primary School in March 1996. (S2, ep 3) 2026-07-24 The Lost City of the Maya: One of the greatest civilisations in the history of the Americas, the Maya thrived for over 2,000 years - but new evidence blurs our understanding. (S16, ep 11) 2026-07-24 Unlocking the Stargates: For centuries, cultures around the world have believed in stargates through which beings have travelled to Earth - but could such portals truly exist? (S16, ep 12) 2026-07-24 Sky's The Limit: The most important planes in history are grounded with no humans around to fly them, including Air Force One, which suffers an explosive malfunction. (S2, ep 7) 2026-07-24 Secrets And Lies: Learn how Lawrence of Arabia used guerilla warfare against the Ottoman Empire's railways. Also, what secrets lie under New York's Grand Central Station? (S1, ep 6) 2026-07-24 Investigation into Jeremy Bamber's murder of his family in Essex in 1985. Sentenced for life, he still maintains he is innocent. Is the right person behind bars? (S2, ep 4) 2026-07-24 The Lost City of the Maya: One of the greatest civilisations in the history of the Americas, the Maya thrived for over 2,000 years - but new evidence blurs our understanding. (S16, ep 11) 2026-07-24 Unlocking the Stargates: For centuries, cultures around the world have believed in stargates through which beings have travelled to Earth - but could such portals truly exist? (S16, ep 12) 2026-07-24 Battle of Hastings: In 1066, William of Normandy decided to go to England to claim the crown of England - which ignited a war of succession on an exceptional scale. (S2, ep 1) 2026-07-24 Battle of Marathon: In 490 BC, Persian King Darius the Great sent an expeditionary force to Greece - but the Greeks awaited them there, repelling the invaders in a single battle. (S2, ep 2) 2026-07-24 Battle of Agincourt: In 1415, the finest French chivalry met at Azincourt. Exhausted and outnumbered, the army of King Henry V of England was easy prey - but it all went wrong. (S2, ep 3) 2026-07-24 Battle of Gergovia: In 52 BC, after eight years of warfare in Gaul, Julius Caesar and his legions laid siege to Gergovia - but he faced a coalition of all the Gallic tribes. (S2, ep 4) 2026-07-24 The Catalaunian Plains: Attila, king of the Huns, faces strongman of the Roman Empire, Generalissimo Aetius. But their terrible battle ends in a bloodbath, with no clear victory. (S2, ep 5) 2026-07-25