A group of grade school boys converge in a mountainous region on the outskirts of a big city. An edgy, ominous atmosphere is introduced by a haunting musical refrain and frequent onscreen title cards that record the passage of time, as if counting down to some cataclysmic event. The boys indulge in several hours of seemingly innocent frolic (hide n' seek, sliding down hills on pieces of cardboard, endless role playing games) before venturing into the city, where they convince a businessman to join them.