The team investigates a series of strange livestock mutilations in the Great Smoky Mountains that some believe could be tied to the infamous chupacabra. Using journals and evidence from Sanderson's archive, the team attempts to uncover the identity of this killer canine and whether or not it could be part of a secret government testing program.
The team investigates a rash of recent Abominable Snowman encounters in the wilderness of British Columbia using research from Ivan Sanderson's lost archive. When the team debates whether it's actually the elusive creature or a rare bear species, they uncover new evidence that may finally distinguish fact from fiction.
The team makes a discovery while investigating sightings of a large bird of prey terrorizing Chestnut Ridge, Pennsylvania; Sanderson believes it to be the mysterious thunderbird, a razor-clawed predator documented in Native folklore.
The team investigates a stranger-than-fiction murder mystery involving the Wildman of Minnesota; known as the Ice Man, its body became a sideshow attraction that Sanderson examined himself before it mysteriously disappeared.