Plot
Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.
Trailer
Cast
Andy Lau
Senior Inspector Lau Kin-ming
Tony Leung Chiu-wai
Chan Wing-yan
Anthony Wong Chau-Sang
Superintendent Wong Chi-shing
Eric Tsang
Hon Sam
Kelly Chen Hui-Lin
Dr. Lee Sum-yee
Sammi Cheng Sau-Man
Mary
Elva Hsiao
May
Chapman To Man-Chat
Tsui Wai-keung
Gordon Lam Ka-Tung
Inspector B
Yue Man-lok
Young Chan Wing-yan
Edison Chen
Young Lau Kin-ming
Berg Ng Ting-Yip
Senior Inspector Cheung
Wan Chi-Keung
Officer Leung
Dion Lam
Del Piero
Tony Ho
Suspect
Courtney Wu
Stereo Shop Owner
Hui Kam Fung
Cadet School Principal
Chaucharew Wichai
Sunny, Thai Drug Dealer
Au Hin-Wai
Elephant
Lee Tin-Cheung
Double 8
Victy Wong Yin-Keung
CIB Team
Yiu Man-Kei
CIB Team
Benjamin Yuen Wai-Ho
CIB Officer
Wong Chi-Wang
CIB Team
Cheng Wing-Yee
CIB Team
Mak Wai-Gok
CIB Team
Kui Mei-Yee
CIB Team
Tam Kon-Chung
CIB Team
Che Jan-Bong
CIB Team
Chin Yiu-Wing
CIB Team
Ho Chun-Hin
Hon Sam's Follower
Simon Yu Sai-Tang
Hon Sam's Follower
So Wai-Nam
Hon Sam's Follower
Lai Chi-Wai
Hon Sam's Follower
Jerry Leung Ho-Kai
Hon Sam's Follower
Terry Lee Ji-Ming
Hon Sam's Follower
Alex Lee Yip-Kin
Hon Sam's Follower
Chow Pok-Foo
Hon Sam's Follower
Hui On-Tat
Officer Chan
Ho Wing-Ling
Superintendent
Simon Cheung Yuk-San
Cadet School Instructor
Leung Chiu-Yee
May's Daughter
Chang Kin-Yung
Policeman
Lee Wah-Chu
Chief Inspector
Pauline Yeung Yung-Lin
Nanny
Wong Kam-Hung
Sam's Follower
