In their biggest investigation yet, Nick and Katrina spend 72 hours exploring the Statler City Hotel in Buffalo, NY - and uncover its sordid underground history.

The team is in Montana to investigate a former prison. The building is reportedly one of the most haunted places in America and is filled with dark entities.

The team face the horror of their childhood nightmares, Minnesota's most-notorious sanatorium. They must find a lot of courage to confront the terror inside.

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

Andrew follows Mark Twain's path down the Mississippi River for a taste of Americana. He tries frog legs, hunts wood duck and samples fish ribs.

Don Wildman examines a newspaper article that saved a famous politician from financial ruin. And, the story of a lifesaving horse cart from the Civil War.

Don Wildman examines a F8 Crusader jet that was at the centre of a death-defying flight. Plus, the story of a baseball player turned spy.

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 sonar recording may prove that a prehistoric monster stalks the seas around Kodiak Island. Researchers investigate the disappearance of thousands of airplanes.

The researchers make a major breakthrough whilst investigating several Sasquatch sightings in central Oklahoma. Have they finally found Bigfoot DNA?

The mayor of a small town in Louisiana invites the Bigfoot team to investigate unusual activity in his community. Can they lure the beast out of hiding?

Andrew cruises up America's most scenic highway. He goes hagfish fishing, eats the reproductive organs of sea urchins and forages for molluscs.

Andrew follows Mark Twain's path down the Mississippi River for a taste of Americana. He tries frog legs, hunts wood duck and samples fish ribs.

Josh searches for a precious statuette that has been lost for 25 years, the Golden Owl. A book of riddles gives cryptic clues to where it might be hidden.

Josh tackles the maritime mystery of the Griffon, the first ship to be lost in the Great Lakes. Josh uses a state-of-the-art submersible in the search.

A mummy recovered at the bottom of the Atlantic has led treasure hunters to $120 million in gold and jewels stolen by infamous pirate Black Sam.

Archaeologist Ramy Romany investigates a mysterious underwater grave in the ancient Mayan city of Mayapán. Were these people victims of human sacrifice?

Falling boulders threaten the crew and the dig site but their solution could cause a huge landslide. Underground, Shawn and Jeremy find their first piece of Jesuit gold.

The team finds evidence of a route used to transport the fortune. Plus, a Jesuit artefact may provide the most critical information on treasure's location.

The team travel to Nicholas County to investigate a large creature called "The Yahoo." The team attempts to capture it inside of a giant log-fall trap.

A single mother must fight to defend her family from a terrifying demon that has invaded her home and now threatens to possess her three children.

Jack and Katrina head to Buffalo, New York, to investigate a former church rumoured to house two portals. The owners believe evil spirits are at work.

The AIMS team travel to Pike County, Kentucky, to investigate a huge canine predator who is menacing the local farming community.

Jack, Sharon, and Ozzy debate if mirrors can be haunted and whether aliens use cloud-cloaking technology. Plus, just how big are Bigfoot's feet?