
On the first day of April 2004, a rumour emerges that Hong Kong's most influential triad organization is planning to assassinate the new Commissioner of Police, who will take charge in 30 days. Three unrelated policemen, Fung Chi Wai (Criminal Investigation Division), Wong Ka Fai (chief of Criminal Investigation Bureau) and undercover Yeung Kai Dong find themselves implicated.
Fung Chi Wai

Pang Wai

Wong Ka Fai

Yeung Kai Tung

Hau Man Wah

Tang Wai Ching

Au Kin Fung

Chu Wing Kei

Law Sau Ling

Hau Man Wooi

Kam Yuet Loi

Rita Artavan

Wong Chan Yeung

Li Man Hou / Cheng Kwan

Hau Man Ying

Hung Pui Kei

Sam

Tang Wing

Choi San

Wan Ding

Fit Wing

Lam Yau Wai

Yip Tin Seng

Fung Mei Yan

Cho Sook Fong
