The team find links between the bloody history of Anaconda, Montana, and Gunslinger Gulch. A trek into the hills has medium Sarah fearing for everyone's safety.

The team confront their childhood fears at the infamous Waverly Hills Sanatorium in Louisville, KY, reputed to be America's most haunted location.

When Hans Holzer visited the Ayers-Allen House in New Jersey, he found entities dating back to colonial times. Now the team discovers an ominous presence there.

The team heads to San Diego to visit the Whaley House, deemed by Hans Holzer as the most haunted home in America. The investigation reveals a dark presence.

The team seeks out the elusive shadow figures lurking in the Waverly Hills Sanatorium in Kentucky. They use high-tech kit to catch shocking new paranormal evidence.

A family won't set foot in the basement after a brutal murder takes place. Amy and Adam bring in advanced paranormal gadgets, and find shocking evidence on camera.

Three new teams arrive to construct their sites and begin work on their unique cabins in the remote Alaskan wilderness. But they're already off to a rocky start.

With half their equipment destroyed, the members of Sixty-Degree Resources find themselves trapped on a dangerously remote island surrounded by ice.

A deadly caiman targets Mehgan, but a potentially crippling accident leads to a shocking find - a coded message from the past that may bring them closer to gold.

The research team head into the wilds of Minnesota to investigate howls heard at a Bigfoot hotspot. Can they catch a glimpse of the tallest Bigfoot ever seen?

Don Wildman examines an elegant dress linked to a stylish felon, a jar filled with a poisonous powder and a plane that speaks to an incredible survival tale.

Josh Gates and his crew are joined by UFO expert James Fox to give an exciting behind-the-scenes glimpse into the hunt for alien life in Chile.

A family won't set foot in the basement after a brutal murder takes place. Amy and Adam bring in advanced paranormal gadgets, and find shocking evidence on camera.

At Trinity Lake, Chris and Joe battle an 80-foot spruce that begins to fall as a helicopter delivery almost goes wrong. Plus, John and Heather fall behind.

In an effort to salvage Cloud Island, Doug leads the miners across a fractured ice sheet to collect samples. In Ilulissat, Eric's scientific methods are wearing thin.

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.

The Bigfoot researchers head to the Canadian Rockies to investigate a unique Bigfoot encounter caught on tape. Can they track down this territorial Sasquatch?

Don Wildman examines a medal belonging to a headstrong female engineer and an ingenious contraption which saved pigeons and aided the Allies in WWII.

Josh Gates and James Fox discuss whether extraterrestrial helped build Easter Island. Plus, are there any clues to real UFO encounters in famous works of art?

A terrified couple calls for help after witnessing a chair levitate in their home. A psychic's visit reveals a horrifying truth that leaves Adam and Amy shocked.

Medium Amy Allen and retired homicide detective Steve DiSchiavi combine their unique skills to solve unexplained paranormal events.

Don examines an ancient carving linked to alien activity, a scalpel used by America's first serial killer and an item buried beneath the World Trade Centre.

Don investigates an eerie premonition about a presidential assassination, a legendary treasure and a miraculous resurrection of 40,000-year-old worms.

The team is in Ohio to help a mother identify the dark energy forcing her family to flee their home - and find chilling evidence about the spirit's evil intentions.

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.