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.

The team travels to a notorious hotspot for Sasquatch activity. With the aid of high tech equipment, they hope to gather more information on this mysterious creature.

Josh explores six locations where the dead are never forgotten. From a Spanish Inquisition stronghold of sadism to a haunted theatre in Memphis, Tennessee.

Don investigates a mystery surrounding two young survivors of the Titanic and a diabolical plot to assassinate one of the world's most influential people.

When Mykel and Ruth are shipwrecked on a deserted island, can they urgently find fresh water? Plus, what will the discovery of a real 'message in a bottle' bring?

When Mykel and Ruth are lost in the mountains near Glacier National Park in Blackfoot Indian territory, what will an encounter with a large black bear bring?

Stranded on a glacier, our hosts face the vast emptiness of Alaska. They must traverse a mountain of glacial ice and straight into bear territory.

Josh Gates travels to ancient shrines hidden across Japan in search of the mystical Honjo Masamune sword. Along the way, Josh learns the ways of the samurai.

Josh Gates traverses England, Wales and Scotland, wading through history and legend to search for evidence of a real King Arthur.

Chris and Casey trek into the heart of Alaska to recover a lost plane that crashed whilst carrying two politicians onboard. Can they solve the 47-year-old mystery?

The brothers head to Virginia on a quest to find a long-lost Confederate treasury. They trek through unforgiving terrain to try to solve the mystery.

Chris and Casey hunt for a legendary silver mine worth millions of dollars. A cryptic journal leads them into the wilds of Kentucky - can they find the treasure?

The brothers trek through snow and relentless terrain in pursuit of a legendary Aztec treasure. What is rumoured to be hidden in the Utah mountains?

Chris and Casey Keefer travel to Ecuador in search of a colony of giants. They trek through the dense jungle, looking for clues leading to the lost civilisation.

Casey and Chris are on the road to El Dorado. Using clues left behind by Percy Fawcett, they head deep into the Amazon in search of the lost City of Gold.

Casey and Chris head to Florida in search of the loot of pirate Jose Gaspar. They leave no stone unturned as they hunt for the $30 million treasure.

Chris and Casey Keefer are in New York tracking down the lost fortune of Dutch Schultz. The brothers use Schultz's final words to guide them.

Our hosts encounter a storm that forces them to scramble down the mountain and toward the coast. They face fog, rain and high drops off steep cliffs in hopes of finding a village.

After following a pack of infamous Grunch into the middle of the swamp in unsettled weather, Elliot and his team realise that the hunter has become the hunted.

Josh Gates ventures to five legendary locations where man has battled the forces of nature. Including the place of an abandoned American dream in the Amazon jungle.

Two Chicago socialites at a top hotel are accused of a gruesome crime, an eccentric chef ruins a customer's career and a stage coach driver keeps a shocking secret.

Chuck Zukowski has been investigating phenomena across the USA for 25 years. Now he spots a pattern: reports of UFOs along the 37th degree parallel.

The Ghost Brothers are in Indiana to investigate paranormal claims at historic Thornhaven Manor. Is the activity caused by the murder victim and his family members?

The Ghost Brothers head to The Magnolia Plantation in Louisiana to investigate claims of deceased slaves still practising voodoo in the afterlife.

The team visits a condemned building in Ione, California. It has dark history as a former reformatory that housed angry juvenile offenders and abandoned children.

From a former asylum where victims were experimented on to a remote outpost where a scorned woman killed her husband, historians and witness recount tales of horror.

When 200 people witness the same unexplained aircraft over their town, are UFOs to blame? Also explore the baffling case of the 7-foot Mothman.

The Tennessee Wraith Chasers visit St. Albans, a former boy's school and experimental hospital, which reputedly was known as hell on earth.