A soldier suffering from PTSD, who has deserted his post, seeks refuge with his brother and some friends in a secluded farming region, oblivious to the collapse of society beyond their hideout. As they attempt to return to the outside world, the brother is assaulted by a farmer who has been infected. The brother rapidly transforms into a feral creature, surviving for only three hours. Aware of the imminent threat, the group retreats to the forest, striving to survive against the hordes of the infected.