Christopher Dubois, head of a gang of poor adolescents. One day, after stealing money from gangsters, the police chases Dubois, but he manages to hide on the ship, which suddenly set sail. When the crew finds the guy, then they decide to get rid of it, but the case again helps Dubois saved. But soon the guy gets into slavery on the island near Siam, which controls the old master of the martial art of Muay Thai. Dubois performs their most menial jobs, but one stood up for one of the students, he drew the attention of the teacher, who soon begins to teach the guy a great martial art of Muay Thai. After a while Dubois buys from the bondage of his friends Dobbs, who is going to use it for the tournament.