Chow Sing Sing is about to be kicked out of the Royal Hong Kong Police's elite Special Duties Unit. But a senior officer decides to give him one last chance: Star must go undercover as a student at the Edinburgh High School in Hong Kong to recover the senior officer's missing revolver.
A group of desperate kids, marginalized and violently out of control, are holed up in a squalid Hong Kong tenement. Cops are a dimly perceived alien force, to be avoided at all costs.
The son of a crooked cop follows in his father's footsteps. He joins an elite group of cops known as the "Flying Tigers" and there learns the true meaning of justice.