
Plot
The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.
Trailer
Cast

Nick Cheung Ka-Fai
Blue

Louis Koo
Shiu Chi-Long

Francis Ng Chun-Yu
Q-Sir / Inspector Q

Charmaine Sheh Sze-Man
Ding Siu-Ka

Benz Hui Siu-Hung
Foon Hei-Gor

Moses Chan Ho
Police Superintendent

Louis Cheung
Triad Member

Clara Lee
Assassin

Li Guangjie
Tung Pak-Ho

Candy Chang Hui-Wen
Siu Ying, Blue's Bodyguard

Xing Yu
Sniper

Cheng Taishen
Kwok Ming

Lo Hoi-Pang
Triad Member

Bob Lam Shing-Ban
Ferrari Owner

Timothy Cheng Chi-Sing
Lam Tung Yau

Jade Leung Chang
Karina

Jimmy Au Shui-Wai
Hong Sir

Rebecca Zhu
Samantha, CIB Detective

Stefan Wong
CIB Detective

Grace Wong
CIB Detective

Hugo Wong
Shiu Chi-Long's Subordinate

Océane Zhu
CIB Detective

William Chak
Ng Pak

Sammi Cheung
CIB Detective

Choi Kwok-Hing
Triad Member

Ken Law Ho-Ming
Lam Bok-Man's Bodyguard

Leung Ho-Kai
Lam Bok-Man's Bodyguard

Ben Yuen Foo-Wah
Triad Member

Alice Fung So-Bor
Auntie Mui

Michael Wai Chi-Ho
Cocktail MC

Cheung Lap-Fung
Assassin in Sauna

Keira Wang
Mandy

Fung Hong-Ling
Banker

Leo Lai Yat-Nam
Restaurant Manager

Kevin Tong
Peter, IT Manager

Carlos Koo
Bank Client

Benjamin Wong Chi-Kong
Ma Sir

Vernon Fong
Interrogation Room Policeman

Ho Chung-Wai
Interrogation Room Policeman

Xavier Leung Kwok-Kin
Shiu Chi-Long's Thug

Sunny Chow
Chum Foon Hei's Thug

Lam Ka Wing
Chum Foon Hei's Thug

Lau Tin-Lung
CIB

Terrence Huang
CIB

Penny Chan Kwok-Fung
CIB

Yu Miao
CIB

Dickson Wong Tak-Sang
CIB

Jones Lee
Triad Member

Alex To Kong
Triad Member

Julius Brian Siswojo
Triad Member

Phat Chan
Triad Member

Edward Chui Wai-Tung
Triad Member

Andy Wong Chi-Man
Lam Tung Yau's Bodyguard

Che Kim-Fai
Lam Tung Yau's Bodyguard

Jason Wong
Kwok Ming's Thug

Jacky Lei
Kwok Ming's Thug

Ronald Lam Tsz-Kit
Surveillance Room Policeman

Derek Lam Ling-Yuen
Tung Pak-Ho's Thug

Woo Man-Jun
Tung Pak-Ho's Thug

Emil Chan Cheuk-Wah
Ng Pak's Thug

Jordon Ho Kwok-Nam
Police Inspector

David Yu Tat-Chi
Police Inspector

Mark Lam Wing-Chung
Police Inspector

Chan Ying-Kit
Police Inspector

Akai Lee
Kwong Ming Lawyer

Cheung Wing-Kai
OTCB Officer

Ng Chi-Wai
OTCB Officer

Kwong Yuk-Chung
OTCB Officer

Law Yim-Cheong
OTCB Officer

Jorge Lucas
Drug Lord

Aires Jorge Ramos
Driver

Yiu Man-Kei
Ding's Police Guard

Tommy Leung Pok-Yan
Ding's Police Guard

Wong Wai-Tong
Hitman

Kong Fu-Keung
Hitman

Cheung Ping-Chuen
Hitman

Paco Yick Tin-Hung
Hitman

Kris Li Chun-Pan

MJ Chan