Revealing, for the first time, the astonishing secret events behind the Russian submarine K-129 that went missing on March 8, 1968, taking the Soviet Union and the U.S. to the brink of war.

This series weaves together powerful and credible first-hand accounts of UFO encounters and abductions, authentic video evidence and dramatic paranormal reenactments, while expert contributors explore the realities of the witnessed events.

A team of experts analyse surveillance footage to uncover the science behind some of the most bizarre occurrences ever caught on camera.

This two-part horror documentary sets out to separate The Conjuring's facts from its fiction.

Grant Wilson and team head into uncharted territory to be the first to investigate reports of paranormal phenomena in some of the nation’s most remote locations. Despite mysterious and unnerving warnings from locals, the Ghost Hunters face their fears and stay on mission: to help people confront terrifying paranormal encounters that have shaken them to their core. In doing so, they capture their most compelling evidence in over a decade.

From paranormal phenomenon to weird and wonderful creatures, from medical oddities to mysterious disappearances - William Shatner investigates them all.

Actor and science fiction icon William Shatner shines a light on mysterious subjects, events and phenomena around the world that have gone unexplained for years.

Bigfoot, Loch Ness Monster, killer beasts on land and sea – are these myths, legends, folklore or real monsters lurking in the world around us?

Legends of the Pharaohs brings to life Egypt’s great pyramid builders and traces one remarkable century of epic construction at Giza.

From the Grand Canyon to Florida's Everglades, the National Parks of the United States have been witness to an extraordinary series of strange events, apparent hauntings and legendary creatures.