Charlie, a wise-cracking, homeless, American orphan is magically transported to the ancient Chinese kingdom of Sanxingdui, where a colorful team of superheroes need his help to defend the city from a brutal conqueror. Charlie joins the heroes, and secretly schemes to steal the priceless golden masks that grant them their powers.

When one of his missteps puts his family in jeopardy, Tarzan decides they would be better off without him.