Tao is a ruthless loan shark, whose brother, Fu Sai Hang, is the captain of the local police. When the mob kills Tao, his brother comes for revenge. Aided by his sister's daughter, Hor-Yee (Joey Wang) to bring down the mob to justice.
Rehabilitated drug dealer rejoins his gang in Taiwan after agreeing to be undercover narcotics agent. His assignment is to smash a smuggling ring in the Golden Triangle.