Sky History2 Prehistory: Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig. (S1, ep 2) 2026-05-19 Hairy Serpents, South Pole Nazis and the Horrible Blob: What is this serpent-like creature caught on camera? And did the Nazis once colonise the South Pole? (S3, ep 16) 2026-05-19 Germany invades Poland, sparking global war: Japan expands in Asia and Africa's colonies become key battlegrounds for power and resources. (S1, ep 1) 2026-05-19 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) 2026-05-19 Infrared Ufo Attack, Human Bear and Underwater Crop Circles: Did a UFO follow two researchers home from an investigation and how did a bear learn to act like a human? (S5, ep 2) 2026-05-19 Whale Eats Kayakers, Trucks vs Trains, Flames & Cranes & Historic Eiffel Tower Jump: A worker is trapped on a burning building's ledge and kayakers are swallowed by a whale. (S1, ep 3) 2026-05-19 Return of the Gobekli Tepe: Experts examine the megalithic complex of Gobekli Tepe, and ask if such an advanced structure could possibly have been built by humans alone. (S10, ep 15) 2026-05-19 Da Vinci's Forbidden Codes: Researchers claim hidden messages can be found within the works of Leonardo da Vinci that may reveal an extraterrestrial influence. (S11, ep 2) 2026-05-19 USOs: The team use high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon. (S1, ep 2) 2026-05-19 The Battle of Killiecrankie: The team find evidence from one of Scotland's bloodiest eras as they wade through the waters of the River Garry in the stunning Scottish Highlands. (S2, ep 1) 2026-05-19 A Roman Mystery And Waterloo's Disappearing Dead: Roberts uncovers East of England's top finds, including a Roman dodecahedron, Boudicca's fort and Waterloo's lost dead. (S11, ep 4) 2026-05-19 Finger of Death: A grim discovery in a Swedish lake reveals shocking ancient practices. Meanwhile, in the Canadian Arctic, the fossil of a previously unknown mammal is found. (S3, ep 1) 2026-05-19 Canoe Conundrum: On the hunt for classic old Canadian canoes, Scott and Sheldon find themselves up the creek without a paddle. Later, they're forced to haggle with a smart teen. (S2, ep 4) 2026-05-19 The UFO Conspiracy: Following a 2017 public disclosure of secret government UFO investigations, are we any closer to proving there has been a UFO conspiracy? (S11, ep 1) 2026-05-19 Attack from Above: Experiments reveal the secret of weapons that became key to aerial warfare, from incendiary arrows to bomb attacks. What will the next advancement be? (S1, ep 2) 2026-05-19 In 1941, Hitler invaded the USSR. Operation Barbarossa stalls as winter hits and Soviet resistance, fuelled by propaganda, turns the tide. (S1, ep 2) 2026-05-19 The Lost Civilization: Decoding a lost civilization reveals the monumental challenge undertaken by some of the academic world's most brilliant minds. (S1, ep 4) 2026-05-19 The UFO Conspiracy: Following a 2017 public disclosure of secret government UFO investigations, are we any closer to proving there has been a UFO conspiracy? (S11, ep 1) 2026-05-19 Rise of the Bomber: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (1 of 6) 2026-05-19 War Without Boundaries: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (2 of 6) 2026-05-19 The Means to Victory: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (3 of 6) 2026-05-19 The World at War: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (4 of 6) 2026-05-19 By Night & By Day: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (5 of 6) 2026-05-20 UFO Lead, Bigfoot Films and the Lost City in the Gulf of Mexico: Is a video leak more evidence that UFOs really exist? And does footage prove that Sasquatch is no myth? (S3, ep 17) 2026-05-20 In 1941, Hitler invaded the USSR. Operation Barbarossa stalls as winter hits and Soviet resistance, fuelled by propaganda, turns the tide. (S1, ep 2) 2026-05-20 The Lost Civilization: Decoding a lost civilization reveals the monumental challenge undertaken by some of the academic world's most brilliant minds. (S1, ep 4) 2026-05-20 ...Mysteries of the Universe. Are We Alone?: Discover unidentified objects witnessed by military pilots and a potential alien home in the darkness of space. (S1, ep 1) 2026-05-20 Echoes of the Devil's Church: The cave's eerie acoustics have been associated with supernatural phenomena, earning it a reputation for connecting visitors to the spirit world. (S1, ep 3) 2026-05-20 The UFO Conspiracy: Following a 2017 public disclosure of secret government UFO investigations, are we any closer to proving there has been a UFO conspiracy? (S11, ep 1) 2026-05-20 Reverse Engineering: Has the US military derived various forms of technology, including stealth technology, from downed UFOs? The UFO Magazine team investigate. (S1, ep 3) 2026-05-20 Viking Invasion: Rick and Beau embark on an epic search through the River Ouse in Yorkshire, in a bid to find evidence of Viking life. (S2, ep 2) 2026-05-20 3000-Year-Old Shoes and Giant Axeheads: Discoveries in southern England reveal Britain's oldest shoe, a forgotten warrior king's shipyard and hidden World War II defences. (S11, ep 5) 2026-05-20 Ancient Warrior Sacrifice: In a Danish bog, hundreds of mutilated ancient bones are found, while a mysterious deserted island belonging to Russia is explored. (S3, ep 2) 2026-05-20 Screeched In: The Pickers head to the Rock to load up on authentic Newfoundland collectibles. But before they can start the deal making, the guys have to become honorary Newfies. (S2, ep 5) 2026-05-20 The Alien Protocols: In 2017, a strange, cigar-shaped object enters the solar system, causing some astronomers to suggest that it could be an extraterrestrial craft. (S11, ep 3) 2026-05-20 Earth's Black Holes: Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena. (S11, ep 4) 2026-05-20 Close Combat: Chart the development of the original form of combat - melee. Over time, short range instruments of battle have evolved, from the short sword to Exoskeletons. (S1, ep 3) 2026-05-20 In 1943, Germany fell at Stalingrad, its first major defeat. In the Pacific, Japan lost momentum after the US won at Guadalcanal. (S1, ep 3) 2026-05-20 The Code That Won the Great War: Revealing the encrypted German telegram could save Britain in its darkest hour. Can a team of geniuses decode the message in time? (S1, ep 7) 2026-05-20 The Alien Protocols: In 2017, a strange, cigar-shaped object enters the solar system, causing some astronomers to suggest that it could be an extraterrestrial craft. (S11, ep 3) 2026-05-20 Earth's Black Holes: Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena. (S11, ep 4) 2026-05-20 The Da Vinci Conspiracy: Experts scrutinise the paintings, journals and technical drawings of Leonardo Da Vinci. Could they hide evidence of extra-terrestrial beings? (S4, ep 11) 2026-05-20 Time Travellers: Scientists explore the possibility that sightings of alien beings or UFOs may be evidence of time travellers from the future. (S4, ep 12) 2026-05-20 Aliens And Dinosaurs: Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia. Could it suggest that alien species killed off the dinosaurs? (S4, ep 13) 2026-05-20 Mystery Of Puma Punku: No one knows who designed and built Bolivia's sophisticated temple complex. Could it have been aliens? Experts investigate. (S4, ep 14) 2026-05-20 Destination Orion: Experts question ancient civilisations' fixation with the Orion constellation. Could this star group have been an entry point for aliens visiting Earth? (S4, ep 15) 2026-05-21