Andrew Wu Ying-Kin

Sing finds Michael "Dagger" Chan in order to become Ko Chun's next disciple, but the two must put aside their differences when they discover that a gang boss is bent on ruining the God of Gamblers' name.

Star Chow, an officer in the elite police unit, resigns when he is made a scapegoat for a botched investigation. He goes undercover at a school to complete the case and realizes a bumbling detective is also undercover as a student.

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.