Kevin Barnes and his family are going camping in the forest near St. Igance, Michigan. It's sure to be a fun vacation filled with adventure and exploration. That is until Kevin, his sister Erin and brother Bobby, find themselves lost. When strange things begin to happen, the three realize they aren't alone. For there are other unearthly creatures that inhabit the forest...strange spirits from another realm! Kevin, Erin, and Bobby are suddenly caught in the middle of a terrible, raging battle, and are forced to take sides. If they win, they can go home. But if they lose....