Hassel used to think that being plucked from his life in the city to live in a cramped, rundown farmhouse in the Appalachian mountains was the worst thing that ever happened to him but when his younger brother, Sloan, goes missing in the wilderness surrounding the property he soon learns that there are worse nightmares to endure. Hassel decides that the only way he'll ever be able to move on is if he faces those very same dark, wicked, woods that swallowed his brother up and never let him go. Gathering a couple of trusted friends, he embarks on a hiking trip to set up a memorial for Sloan so that he may finally be free and lay the past to rest. Only, the hiking trip does not go as planned. You see, there are a certain set of rules that you should follow when trekking through Appalachia. Rules to keep you safe, to keep you alive, to keep you from being hunted by the unimaginable horrors that stalk through the brush and treetops. Unfortunately for Hassel and his friends, they wind up breaking every rule and realizing why they were established in the first place.