"A martial arts instructor working at a police academy gets imprisoned after killing a man by accident. But when a vicious killer starts targeting martial arts masters, the instructor offers to help the police in return for his freedom."
Donnie Yen
as Hahou Mo
Charlie Yeung
as Luk Yuen-sum
Wang Baoqiang
as Fung Yu-sau
Michelle Bai
as Sinn Ying
Deep Ng Ho-Hong
as Tai Yue
Alex Fong Chung-Sun
as Lam Sir
Christie Chen
as Shum Suet
Yu Kang
as Wang Chit
David Chiang Da-Wei
as Chan Pak-kwong
Louis Fan Siu-Wong
as Hung Yip
Xing Yu
as Tam King-yiu
Mang Hoi
as Hunan Gangs Leader
Sharon Yeung
as Landlady
Rock Ji
as Big Guy
German Cheung Man-Kit
as Fai
Jessica Wong Ka-Wai
as Siu Man
Kirk Wong Chi-Keung
as Inmate
Bruce Law Lai-Yin
as Truck Driver
Tsui Siu-Ming
as To Fook-ming
Joe Cheung Tung-Cho
as Film Director
Tony Leung Siu-Hung
as Correctional Officer A
Lee Tat-Chiu
as Correctional Officer B
Andrew Yan Hua
as Correctional Officer C
Bey Logan
as K-1 Kickboxer
Yuen Cheung-Yan
as Lui Ching-yuen
Yuen Bun
as Siu Hok-nin
Billy Chan Wui-Ngai
Dion Lam
as Coroner
Derek Kwok Chi-Kin
as Chan Sir
Teddy Chan Tak-Sum
as T.S.T. District Officer
Andrew Lau Wai-Keung
as Y.T.M. District Officer
Alex Cheung
as News Announcer
Steve Chan Wai-Hung
as Duty Officer A
Wong Wai-Fai
as Duty Officer B
Peter Kam Pau-Tat
as Superintendent
Koman Cheung
as Mak Wing-yan
Soi Cheang
as Prison Governor
Apple Chow Suk-Wai
as Identification Bureau Officer
Raymond Chow
as Food Stall Diners
Susan Chan Suk-Yin
as Reporter A
Roy Szeto Wai-Cheuk
as Reporter B
Kinson Tsang King-Cheung
as Deputy Commissioner OPS
Yiu Man-Kei
as S.D.U Inspector
Original Music Composer
Director
Story
Lau Ho-Leung
Mak Tin-Shu
Writer
Alex Dong
Producer
Catherine Hun
Horace Wong Wing-Hang
Director of Photography
Song Ning
Action Director
Jack Wong Wai-Leung
Choreographer
Kwok Man-Ki
Assistant Director
Stephen Tung
Stunts