It was supposed to be an adventure. A little time off to honor the
memory of a friend and complete a service project in the tropics. Do
good deeds while getting a tan.

But when a storm rocks their
plans, five long-time friends from college find themselves hurled onto a
desolate island, and relief fades to fear. Here nature rules with a
vengeance. The lone shelter from raw conditions is a sinister cave.
Are they victims of a bizarre psychological experiment? Or could this
godforsaken place have the power to maroon them forever?