Jessica Chobot and Phil Torres dive into the legend of Mothman by searching for clues in a long-sealed bunker and a top-secret Air Force base.

Phil Torres and Jessica Chobot investigate a strange phenomenon that's been haunting Mammoth Cave for generations.

Braving shark-filled waters and deadly undersea tunnels, Jess and Phil probe reports of the Lusca, a sea monster said to be attacking Bahamian locals. Their hunt takes them deep into unexplored “blue holes” -- and could expose shocking military secrets.

Phil and Jessica head to Lake Lanier, a manmade lake that covers over 20 cemeteries and the bodies still buried there; they investigate in and around the deadliest lake in America to uncover rumors of drownings and ghostly encounters.

Josh wants to investigate ghostly sightings and terrifying sounds coming from an abandoned canal along the Potomac. Jess and Phil dive into the murky depths and search secret tunnels that make this America's most haunted waters.

In part two of this investigation, Phil and Heather descend deep into the Mayan underworld to explore a vast subterranean cave believed to be the realm of menacing, ancient spirits.

Adventurer Josh Gates, scientist Phil Torres and paranormal researcher Jessica Chobot investigate reports of supernatural encounters, mysterious creatures and extraterrestrial phenomena.

Bizarre cattle mutations in the Pacific Northwest lead Josh Gates to send his team to investigate. The baffling deaths make Jessica and Phil question if the cattle were victims of newly arrived apex predators or the target of something more sinister.

In the Yucatan, Phil and Jess investigate watery caverns believed to be portals to the Maya underworld. Some say angry spirits are to blame for strange lights and bizarre animal behavior, but the sacred cenotes hide secrets far darker than any legend.

Jess and Phil are joined by The Ghost Brothers as they continue their investigation of Mackinac Island; the teams explore a lighthouse with a dark past and realize the troubled past of the island is more widespread than they thought.

Phil Torres and Jessica Chobot power through camera malfunctions and emotional breakdowns in order to find an explanation of what is happening on the Island of the Dolls -- a dangerous place that locals have long avoided.

Josh Gates dives into one of America's oldest witch stories. In the Tennessee backwoods, locals report being attacked in a vast cave system. Jess and Phil go underground and uncover frightening piles of bones as well as potential human remains.

Phil and Jess travel to Ireland and the UK to investigate a centuries-old secret society whose most elite members were known to practice satanic worship and ritual sacrifice.

The team heads to Arkansas, where a legendary swamp monster has terrorized the small, rural town of Fouke for over a century.

Phil and Heather journey to the Czech Republic to investigate a castle reportedly built over a literal Nazi portal to hell.

Heather and Phil travel to an ancient Mayan city in search of a spirit named the Stone Lady. But these aged ruins carry more threats besides vengeful spirits: poisonous snakes, scorpions, and tunnels on the verge of collapse.

The surge of human activity surrounding the discovery of an ancient city sends Phil Torres and Jessica Chobot deep in the Cambodian jungle to search for a monster that has been terrifying locals for centuries.

Terrifying apparitions in a Texas swamp lead Josh Gates to send his team to the notorious Big Thicket. The area is crawling with venomous snakes but what really frightens Phil and Jess are mysterious Ghost Lights that have haunted locals for generations.

Phil and Jess investigate a 30-foot serpent in Lake Champlain.

Josh sends Phil and Jessica to Bangkok, Thailand, to search for the group behind terrifying warnings of global catastrophes and natural disasters.

Lake Superior's treacherous waters have claimed thousands of lives. After witnesses report ghostly lights and sounds, Phil and Jess dive into an investigation to uncover the truth behind alleged paranormal activity on Michigan's Shipwreck Coast.

Jess and Phil venture deep into the Ozarks to investigate a mysterious predatory beast. Eyewitnesses, surveillance footage and new recordings of bone-chilling howls lead the team to a shocking revelation about the legendary creature.

Phil and Jess search whitewater rapids and a frigid Alaskan lake for a legendary beast that's now the target of serious scientific inquiry. Armed with new eyewitness accounts and advanced underwater robotics, the team takes a deep dive for answers.

Heather and Phil head to Tennessee's Brushy Mountain Penitentiary to investigate terrifying reports of possession and confront the violent, powerful, and hostile forces lurking in its remains.

Josh Gates' team heads west to investigate America's most haunted town. Locals claim the spirit of a notorious bandit spooks the town because of a wrongful hanging. Phil and Jess' investigation leads them into a dangerous abandoned gold mine.