The team heads back to the Tygart Valley on a mission to prove that a Bigfoot roams those mysterious hollers; a rumbling sound from deep in the hills gets the guys moving, and they stumble upon a strange tree structure.

Things heat up for the team when Buck realizes that the legendary Grafton Monster has migrated to the Tygart Valley. It's a monster hunt unlike any other when they stumble across the mutilated carcass of a cow.

The team comes in hot onto a cattle farm after realizing the Grafton Monster is hunting livestock; they then set off on a mission to hunt for what they believe is the cryptozoic creature's most recent victim and encounter an absolute bloodbath.

Huckleberry reveals his family's terrifying brush with the Grafton Monster. Later, Jeff breaks out his "hillbilly hazmat suit" to do some bloodwork on an old dog collar. And Buck gets into a hellacious fistfight with locals under the moonlight.

The AIMS team gets a hot lead on a massive Bigfoot nest hidden in the hills of the Tygart Valley. With some help from tech wizard Cowboy Ken, the boys take to the skies to scout out the exact location and uncover their best Bigfoot evidence to date.

The AIMS team members find themselves in the middle of a turf war in No Man’s Land between the Grafton Monster, Bigfoot and a pack of Smoke Wolves; the team then searches for the source of a mysterious rumbling in the hills of the Tygart Valley.

The search is on to find a lost brother when an AIMS team member goes missing somewhere in the hidden hills of the Tygart Valley; after hearing gunshots, the team makes a shocking discovery and must evacuate Willy from the woods.