The Osbournes hop into their DeLorean for a game of celebrity time traveller. Plus, Ozzy gets closer to becoming a believer in UFOs.

Josh concludes his investigation into the mysterious Maya city of El Mirador, including the possible burial of the Snake Kings.

Josh investigates the theft of one of the most iconic pieces of Hollywood memorabilia: the ruby slippers worn by Judy Garland in The Wizard of Oz.

Experts investigate evidence suggesting that one of the world's most elusive figures, the Yeti, lives in America and may have an otherworldly source.

Experts analyse new evidence that could prove the legendary bloodsucking beast known as Chupacabra is real, and that there are two versions of the creature!

The treasure hunters make a new discovery, and a run-in with a jaguar leads to another revelation, but the new path has tragic consequences for Captain Keith.

After a tragic event on their way to a Guarani village, the team secures vital information from the village elders about a special stone hidden near "The Demon Falls".

The Hubble Telescope spots thousands of unknown objects travelling faster than light. Are we being watched? Or could we ourselves be aliens from another world?

A planet shows evidence of an Earth-like atmosphere, while a mysterious glowing light suggests the impossible: an atmosphere on the Moon.

Josh traverses the land of the Nile to reveal the secrets of Ancient Egypt's most powerful and elusive women: Hatshepsut, Nefertiti and Cleopatra.

Colton is fishing on a lake when something in the woods catches his eye. Is he being stalked by a pale humanoid creature?

A teenager sneaks out of her home to go on a double date. But she soon finds herself attacked by what she believes is an aggressive dogman.

Josh continues his journey through Egypt to uncover the secrets of ancient history's most powerful women rulers: Nefertiti and Cleopatra.

A 19th-century prison hides a chilling secret within its walls. A sealed door haunts a British museum and residents from the past roam a historic village.

From a Nevada motel with a clown theme to a Maine movie theatre where the horror lurks in the aisles, historians and witness recount tales of horror.