After obtaining a video of a gigantic creature, AIMS travels to Grafton to investigate the "Headless Horror". Can the team capture this monster?

The guys go to California to inspect the home of the eccentric heiress to the Winchester Rifle fortune. Were her fears of vengeful ghosts justified?

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

The investigators head to the Sierra Nevada Mountains to investigate multiple Sasquatch reports. Can they find a way to lure these elusive creatures out of hiding?

Don investigates the secret identity of an American founding father, a record-setting aviatrix and the origin of the modern American flag.

When Mykel and Ruth become lost during the flood season in the Amazon jungle in a primitive canoe, they must survive on grubs, piranhas and rainwater as they find their way out.

The investigators head to the Sierra Nevada Mountains to investigate multiple Sasquatch reports. Can they find a way to lure these elusive creatures out of hiding?

Wildlife expert Casey Anderson travels to Bolivia to investigate sightings of a long-extinct ground sloth.

Don investigates a scientist's attempt to document the life cycle of a tornado, a record-breaking $100 million heist and a pioneering filmmaker.

When Mykel and Ruth become lost during the flood season in the Amazon jungle in a primitive canoe, they must survive on grubs, piranhas and rainwater as they find their way out.

The investigators head to the Sierra Nevada Mountains to investigate multiple Sasquatch reports. Can they find a way to lure these elusive creatures out of hiding?

Wildlife expert, Casey Anderson, ventures to the most remote corners of Alaska in search of a proof that a beast known as the Mega Bear exists.

Don Wildman inspects a fighter jet from the cold war, an 1860s replica steam locomotive and a rare print of the Declaration of Independence.

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?

The forests of Arizona's Mogollon Rim are believed to be the perfect habitat for young Sasquatches. Can the local Apache Indian tribe help the team to find them?

In the murky bayous of Louisiana's Honey Island Swamp, Elliot and his team have their hands full with the notorious 400-pound Honey Island Swamp monster.

Don Wildman investigates an American president's cross-country road trip, a criminal crusader, and the secrets of a Grand Canyon adventure.

McCarthy is under attack from awakening bears. Jeremy's livestock is attacked and he goes on the hunt. While Gary searches for horses spooked by a grizzly.

Treasure hunters search for clues to a vast fortune they believe is hidden on Brazil's "Snake Island." But team tensions could derail the expedition.

Scientist and explorer Pat Spain aims to solve mysteries that have baffled the world. Can his experiments make the difference in the investigation?

The Snows renovate a large house and focus on making the kitchen area unique. Casey and Catrina create a contemporary home with a true galley kitchen.

Mark and the team reclaim a rare one-room log schoolhouse full of history. Back on the boneyard, the schoolhouse gets a whole new life.

Stranded on an island the team has 48-hours to investigate terrifying Fort Delaware, a former civil war POW camp that claimed the lives of 1 in 4 prisoners.

The team investigates a house where three kids are tormented by apparitions. Then they explore a hospital on the site of an old lunatic asylum - what haunts the morgue?

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