Plane bound for Costa Rica crashes in jungle. Nineteen teenagers miraculously survive. Joel Aspinall is a calm and judicious member of the school board who takes over the leadership of the group until rescuers arrive. Tom Calloway is an unsociable teenager who shouldn't have been on this trip with these people but is now forced to do anything to save himself. The number of survivors begins to decline rapidly. It's easy to get lost in the jungle. As in who will become a hero and who will lead others to death.