Wah Dee is just another small-time punk, an orphan dragged up on the mean streets of Hong Kong. A loner, he handles cars and bikes like a racing champion, and is enlisted by psychotic Triad leader Trumpet as a getaway driver for a heist that goes wrong. In the aftermath of a robbery a teenage girl, Jo Jo, is taken hostage. Trumpet orders her killing but Wah steps in to protect her, therefore severing his loyalties to the gang and they to him. They go on the run from the gang and from her wealthy parents, and in the process fall in love.