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.
| Writing | 右乔 | Writer |
| Editing | Wong Hoi | Editorial Consultant |
| Writing | Ming-Ho Yip | Writer |
| Production | Virginia Lok | Producer |
| Camera | Ray Cheung Tai-Wai | Director of Photography |
| Art | Lau Yuet-Lam | Art Direction |
| Directing | Mak Ho-Pong | Director |