Kin Shing is the leader of a drug syndicate, code-named "Black Wolf", while his older brother Kin Chung is a member of the Narcotics Division of the Hong Kong Police Force. At the same time, he is involved in a fight against drug lords and it is this investigation that the elder brother discovers that his younger brother had another identity. The two starte a confrontation between good and evil for their respective goals.
Michael Chan Wai-Man (Chinese: 陳惠敏; born 10 July 1943) is a Hong Kong actor and martial artist. A Hakka of Wuhua ancestry born in New Territories, Chan was well known for various triad roles, when in actuality he had been involved with triads in real life.