A grief-stricken arborist and her son awaken a haunting when they begin felling trees at the estate of a mysterious recluse.

A group of delinquent boys are sentenced to a wilderness challenge on a remote island, but become stranded. As civilization disappears, their detention becomes a game of survival - with each other, and with the unexpected.

A witty teen leads a group of his friends into the woods on an expedition to locate an allegedly lost "treasure" - despite the warnings of his telepathic sister - and soon the crew gets lost and is stalked by a cannibalistic killer.