This is a fine and honest film with excellent performances by its youthful cast. Two gangs of boys act out an exercise of war when the red shirts try to invade a lumber yard used as a playground by the Paul Street Boys.

A tough youth gang leader learns the true meaning of courage in this moving and thoughtful drama. He is the leader of a troop of boys involved in an elaborate game of "capture the flag." He is idolized by a sickly boy on the block who begs to be allowed to join the leader's group. Eventually the older boy gives in and "enlists" the weakling as a private. Though he treats the young lad with contempt, the boy is so enamored of his hero that he doesn't notice. Eventually the gang's rivals, the "Red Shirts" steal their flag. To prove himself, the sickly boy risks his life and frail health. The allegorical, anti-war story is based on Hungarian playwright Molnar's autobiographical novel.