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The Gold Rush
Hunted By UFOs
Henry digs for information on America's largest-ever mass migration, and finds some stories that may shock you.
Experts unseal files documenting how people have been hunted by UFOs, some more than once. What could these UFOs want? And could you be their next target?
Mysteries of the Sphinx
Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being.
For centuries, this mysterious civilisation ruled a huge territory across South America. But by 900AD it had all fallen apart so dramatically that Mel Gibson would later turn the events into a movie.
One of the most mysterious ancient civilisations, at its peak the Persian Empire stretched from Greece to India. Why didn't it last?
The death of the Hindenburg is a moment in history that refuses to be forgotten. Dr John Provan is considered among the world's foremost experts on the disaster, and takes a team of documentary producers to his home for a final re-creation.
Torpedo Boats At War
Featuring several ships per episode, this series provides a new perspective on the military, political and domestic issues of the time, whilst revealing human stories and engineering marvels.
The Alien Wars
Alaska's Body Snatchers
Zombies of HAARP
Experts investigate whether the US military has a secret space programme, as well as evidence suggesting alien races have been in conflict for millennia.
After a mountain climber goes missing in an area of Alaska known for UFO sightings, the team searches for evidence of alien abductions.
The team explores a top secret government facility that is said to operate an electromagnetic generator that has caused the disappearances in Alaska.
These are moments in history that will never be forgotten. But which siege will top our list for being the most devastating?
Air War in Vietnam
Answering the desperate calls for air strikes from soldiers in the jungle, discover how US fighters and bombers unleashed their fury in Vietnam.
MUFON investigates the history of submersible UFOs and their potential underwater bases. Could there be as many UFOs beneath the sea as reported in the sky?
Ancient alien theorists delve into the incredible stories of people who claim they mingled with celestial beings while they were on the brink of death.
UFOs at War
Examine the tactics of tank-versus-tank combat, as well as the goals of the tank infantry team.
MUFON experts explore intriguing reports of UFO sightings over battlefields.
Could Earth's deepest caves hide secret conduits to other worlds? Or harbour evidence that aliens once visited our planet? Experts investigate.
Assaulting the Fortress
Cops vs UFOs
'Assaulting the Fortress' looks at the challenges faced by the army engineers as they work to breech the 'impregnable' enemy fortress.
Experts search for the truth about UFOs in Hangar 1: an Ohio warehouse full of files about alleged alien sightings and potential government cover-ups.
Aliens Among Us
Aliens Among Us: Are we being watched by otherworldly beings? Experts make surprising discoveries as they explore the ancient past for evidence of alien overseers. (S7, ep 4)
From early testing in the 50s to employment in Vietnam and beyond, the attack helicopter has proven to be the most elusive weapons platform ever.
UFO Superpowers: Experts search for the truth about UFOs in Hangar 1: an Ohio warehouse full of files about alleged alien sightings and potential government cover-ups.
The Genius Factor
History's greatest geniuses have often said their ideas came from visions or hallucinations. But could they have come from aliens? Experts investigate.