A war game between two summer camps turns progressively unruly in this heavy-handed adventure from Canada, written and directed by Roger Cantin. The Conquistadors and the Indians are divided not only by location but also by their parents’ socioeconomic status, and Cantin wastes no opportunity to stress the class conflict, frequently invoking Lord of the Flies and Romeo and Juliet (the leader of one camp falls in love with the sister of his counterpart in the other camp). The plot is overloaded with antiwar and ecological messages, and when the young actors aren’t delivering them they’re usually mugging for the camera.