A group of strangers wake to find themselves chained together and being held captive in an underground cell. They escape their mysterious imprisonment only to discover they are in the deep, dark depths of an unfamiliar forest. Bloody, bound and broken the group flee and must work together to survive, but they are stalked by the supernatural force of masked killers that kidnapped them. One by one the group are picked off by the armed hunters and grizzly traps, before being dragged back to face their reckoning. With freedom in sight, the remaining members of the group decide to return to hell and fight the faceless evil in hope of saving anyone still alive.