Hostile Sasquatches are said to be leaving the wilderness behind for Alaska's major cities. Plus, ghost hunters search for evidence at an infamous hotel.

Dakota heaps fear upon the team when he attempts to tap into the dark energy that permeates an abandoned Minnesota orphanage.

The team explore a New York asylum said to be haunted by the spirit of a seven-foot-tall man. Tanner is forced to confront his greatest fear.

The team explore an asylum in West Virginia. Dakota isn't sure they are ready to combat the souls rumoured to be haunting this property.

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.

The team gear up for their first venture onto Snake Island, where they'll face triple-digit heat and one of the world's deadliest vipers.

Hot on the trail of a huge feline who has been reported in the town of Paxson, Todd devises a trap, while Levi figures out a way to wirelessly trigger it.

The team heads to southern Alaska to investigate sightings of a highly temperamental Bigfoot. Todd and Rhett build a huge, electrified tepee to catch it.

Adventurer, Josh Gates, ventures into the ancient Maya city of El Mirador in search of the lost tombs of mysterious ruling dynasty, the Snake Kings.

Josh Gates delves into Wild West lore to find Butch Cassidy's missing money. He traces the iconic outlaw's footsteps through Colorado, Utah and Nevada.

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?

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.

The team gear up for their first venture onto Snake Island, where they'll face triple-digit heat and one of the world's deadliest vipers.

The spring breakup is starting to occur and the snow is melting. Meanwhile, Neil aims to start construction on the renovation of the mine.

As the battle for McCarthy wages on, a team of experts work to locate the only known entrance into the Mother Lode mine. But will they find it?

The truth behind America's secret bunkers - from backyard boxes to government mini-cities. Underground bunkers have featured in war planning since the dawn of time.

We'll explore a conspiracy that helped three inmates escape the dungeon of Alcatraz, and discover the remnants of a mysterious military outpost linked to Abraham Lincoln.

A bush pilot witnesses unsettling UFO activity. A former government operative reveals top-secret coordinates to an alleged alien base.

An extra-terrestrial stalker leaves a family frozen in fear outside of Juneau, Alaska. A maritime monster nearly capsizes an aircraft on Alaska's famed Lake Iliamna.

Amy Bruni, Adam Berry and Chip Coffey investigate a jail in Florida. Rumours suggest murderous spirits are lurking in this property.

The team investigates Gettysburg, Pennsylvania, site of the bloodiest battle of the Civil War, and try to make contact with the souls of these fallen American soldiers.

The team head to Bisbee, Arizona to investigate the one-time mining town's rough past. And, they head underground for the first time in their paranormal careers.

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