Alien Files Unsealed
Experts open previously off-limits files in a bid to answer some of the most mysterious questions surrounding UFOs and extra-terrestrial life.
Experts open previously off-limits files in a bid to answer some of the most mysterious questions surrounding UFOs and extra-terrestrial life.
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Experts investigate a strange glowing lake reported to turn things into stone. A mysterious structure in Africa that resembles Stonehenge is said to be the resting place of a mythical giant.
Check out mind-reading plants, pagan human sacrifice and Californian time travellers.
A look at Death Valley boulders, mysterious dancing lights and super-marathon runners.
From Fort Knox to Hangar 18 and Camp Hero, discover a series of top-secret and high-security national database centres.
Secret satellites. Death stars. The weaponisation of outer space. Are governments the world over preparing for an alien attack? And if so, why are we being kept in the dark?
In a display case at Harvard University's Warren Anatomical Museum is one of the most astonishing objects in medical science – the shattered skull of a 19th century American railway worker.
In 1860, workmen digging a drainage ditch in a Scottish hamlet discover the Towie Ball, a strange and beautiful black stone object about three inches in diameter. It has been painstakingly carved into a bulbous shape from a single block of rock.
Experts open previously off-limits files in a bid to answer some of the most mysterious questions surrounding UFOs and extra-terrestrial life.
On a country road, Betty Cash, Vickie Landrum and her grandson Colby encounter a large, unexplained diamond-shaped craft shooting fire out of its base.
A strange creature similar to the Loch Ness Monster is spotted in the United States experts analyse evidence of a giant scaly egg, and some wonder if it belongs to a dragon birds are suddenly vapourised by an invisible death ray.
Deep sea explorers discover an unknown monster thousands of feet beneath the ocean killer fog threatens a town in the American Midwest a truck spontaneously explodes on a busy freeway.
When satellites capture a strange oozing grey mass in the Mississippi countryside, scientist Nick Pollock goes to investigate.
A perplexing, intricate symbol high up in the remote Peruvian Andes may be for the grisliest of child sacrifices - death by lightning strike.
A fire-breathing crater burns in the middle of a desert, and some suspect it is a gateway to hell. Also, a deadly shark is found lurking in a golf course water hazard. A giant white blob threatens a town in California.
An explorer searching for treasure at a Mayan sacrificial site is attacked by a mysterious underwater fog thousands of fish spontaneously jump to their deaths something alien appears over the skies of Los Angeles.
Over two nights, a silent, orange football-shaped object is spotted near the nuclear weapons storage site at Loring Air Force Base in Maine. Could alien visitors be to blame?
Strange lights are reported by security near the East Gate of RAF Woodbridge, a US Air Force base on England's east coast. But could extra-terrestrial visitors be to blame?
Man-made islands are spotted near a Korean missile facility and when something unexpected is found in a desert, experts investigate a lost city of giants.
A look at dolphin rescues, death-smelling pets and a skinny teen with unbelievable strength.
Did San Francisco's sea lions sense an impending disaster, what are the secrets of a mysterious medieval manuscript, and why do mummies in Egypt contain cocaine from Peru?
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