Student Tom Calloway hates his classmates and really doesn't care to learn anything, not even if it means going on a trip with some of them for a week. If his guardian hadn't been away, Tom never would have boarded the plane--which means he never would have been in the crash that killed all the teachers and most of his class, and stranded the rest of the kids in the jungle, forcing them to survive on their own. Then, one of them turns on the others.