After his identity is exposed during his latest assignment, assassin David Starke goes into hiding with his crippled brother, Nick, in a secluded cabin located in the northern side of Michigan's lower peninsula. Unfortunately for the Starke brothers, David's trek to the cabin takes him through range of a territorial dogman.

In their struggle to survive, David injures the beast. The howls of the wounded dogman draw in the rest of its pack. Trapped inside, the brothers try to fend off the monstrous attacks while refusing to call the authorities for help (as David would immediately get arrested).

Help arrives in the form of James Laudon, Nichole Voss and Xander Anatoli along with an Emmet County deputy and an elderly Odawa tribe member. Will they reach them in time? And will the strange dynamic of the situation become more volatile than the attacking monsters?