A virus is threatening to spread throughout Southwest Washington. In the forests of Mount Saint Helens, deer are going mad. Unfortunately for Bob Grodman, he takes his family camping. His vision of Thanksgiving weekend was to get away from Longview, the mill, and to finally get close with his detached wife and teenage daughter. But the vacation he had in mind was soon disrupted with the realization that he and his family were not alone. Their vacation turns into a bloody trial of survival and the madness threatens to consume everything.
Eddy and Serge, best friends, decide to go hunting that same weekend but find more than they could ever imagine. The tables are turned when they become the hunted.
Surrounded, attacked, wounded, only the strong or lucky will make it out of the forest alive.