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.
| Actor | Role |
|---|---|
 Bosco Wong Chung-ChakKin Shing | Kin Shing |
 Michael Tse Tin-WahKin Chung | Kin Chung |
 Joel ChanMr. Max | Mr. Max |
 Cheung Kwok-KeungCaptain Chin | Captain Chin |
 Michael Chan Wai-ManUncle Dragon | Uncle Dragon |
 Alice Chan WaiJessie | Jessie |
 Tony Wu Tsz-TungAnson | Anson |
 Jazz Lam Tsz-SinNot listed | Not listed |
 Michael NingNot listed | Not listed |
 Keith Ng Shui-TingNot listed | Not listed |
 Alan Chui Chung-SanNot listed | Not listed |
 Sisley ChoiNot listed | Not listed |
 Rosita KwokNot listed | Not listed |