A team of ghost hunters investigate an abandoned gold mine. Plus, numerous sightings suggest a fearsome Yeti inhabits the Alaskan mountains.

The Alaskan skies are filled with unexplainable lights and objects. Witness accounts and never-before-seen evidence suggest UFOs are landing in the area.

Deep in the woods, a former policemen stumbles upon an abandoned lakehouse. What will he discover inside this ominous property?

A couple's hopes of a dream life in the California mountains are ruined when they stumble upon a satanic site.

Atlantis is one of the most famous disappearances. After thousands of years, can state-of-the-art technology finally to crack this ancient mystery?

In 2014, Malaysia Airlines flight MH370 vanished without a trace. Did it crash and if so, why can't the wreckage be found?

Is a Sasquatch colony terrorising the residents of a remote island? And, could decades of UFO sightings suggest that aliens are working with the US military?

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

Could spaceships really be powered by atomic bombs? Plus, why was Neil Armstrong's transmission feed cut off when he spotted strange lights on the Moon?

New technology reveals lost cities in hostile jungle - could this lead to a discovery of the mythical El Dorado? And, a crystal is found on a shipwreck.

After a huge cargo ship suddenly vanishes with 27 crew members on board, new evidence suggests the culprit may be a mythical rogue wave.

Three cosmonauts die mysteriously as they re-enter Earth's atmosphere. Plus, a NASA rover discovers clues that help solve a murder.

Images of Mercury reveal massive spider-like formations on its surface. Is it an odd geological formation - or something much more ominous?

A cryptozoologist investigates reports of a sea monster in Alaska. He reviews eyewitness accounts and examines never-before-seen video evidence.

Experts discuss theories related to the world's most famous cryptid, Bigfoot. Recently uncovered evidence unveils a creature far fiercer than previously believed.

Experts explore a new theory surrounding Scotland's Loch Ness Monster. The creature may not only be real, but possibly more dangerous than ever imagined.

A dangerous run-in leads the team to an astounding new clue, but a communications breakdown leaves them in the dark about an approaching storm.

The team pushes deeper into Snake Island than ever, tempting fate with every step, and they make a discovery that will change their lives.

Why was Las Vegas a Nazi target for wartime sabotage, a test ground for Atomic Bombs, and a meeting place for 9/11's terrorists?

From the rallies held at Madison Square Garden, to the plots to steal the secrets to the nation's weapons of war, the American Nazis terrorised the USA in the 1930s.

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

A boy and his father discover a portal to a cursed circus. In this hellish world, they encounter an entity that will stop at nothing to trap souls in its inextinguishable inferno.

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.