The team investigates recent encounters with a monstrous apex predator in the wilderness of British Columbia. Using never-before-seen clues from Ivan Sanderson's lost archive, they uncover new evidence that may finally distinguish fact from fiction.

An unknown apex predator is preying on orcas off the frozen coast of Kodiak, Alaska. Can the team identify the monster before it strikes again?

The team investigates a stranger-than-fiction murder mystery involving the legendary Wildman of Minnesota. Also known as the Ice Man, its body became a sideshow attraction that Sanderson examined himself before it mysteriously disappeared.

The team investigate sightings of large birds of prey in Chestnut Ridge, PA. They discover what Sanderson believed to be the mysterious thunderbird.

The team investigates a series of strange livestock mutilations in the Blue Ridge Mountains that some believe are tied to the infamous chupacabra.

When Ozarks locals report frightening encounters with a mysterious, dragon-like beast, the team conducts their most ambitious hunt yet.