The plot is set in a post apocalyptic Junkyard where people take refuge from authority and are able to practice their fantasies and fetishes without being stopped by the police. These people are led by Emanou who is a sort of Messiah, who promises music rather than salvation.
In the fifth century, constant civil war scars western China. To escape death, Ti, a young scout, jumps through a crevice in the Zu mountains where he meets and becomes the apprentice of Ting Yin, a spiritual man with great fighting powers.
High School student David Lightman (Matthew Broderick) has a talent for hacking. But while trying to hack into a computer system to play unreleased video games, he unwittingly taps into the Defense Department's war computer and initiates a confrontation of global proportions! Together with his girlfriend (Ally Sheedy) and a wizardly computer genius (John Wood), David must race against time to outwit his opponent.
Five friends are released from prison and do their best to stay out trouble. While trying to mind their own business (and run their 5-Star Cleaning Service), they are caught up in a war between rival Triad gangs fighting for control of the counterfeit currency market.