A prince enlists a thief to serve as his bodyguard to protect him from assassins.

Iron is the son of a rebel leader, but prefers to spend his days gambling and getting into fights. When his father's group is arrested and executed, Iron is forced to flee and hide in the woods as a beggar and thief. After being taken in by a Shaolin monastery and trained in the art of Monkey-Style Kung Fu, Iron vows to hunt down his father's killer and avenge his death.

During the Qing Dynasty, a fishmonger is killed by the reigning Manchu government for supporting the anti-government movement; his son manages to escape to Shaolin Temple, where he plans to learn its secretive brand of martial arts to seek revenge.