Chief inspector of Hong Kong’s Criminal Intelligence Bureau, Cheuk Hoi, is suspicious of his close colleague’s mysterious death. Adding to the enigma, he discovers that the five undercover agents who were in constant contact with his dead friend have all vanished.
Un oficial de la policía búlgara trabaja encubierto como miembro de la mafia y se enreda en el mundo del hampa.
When a secret police operation fails, sniper Lee Ho-yeung develops a personal grudge towards his co-worker Ko Chun-kin. Ho-yeung eventually decides to leave the police force and becomes the president of a firearms association, colluding with organized crime on the sky. Through abusing the trust of an unknowing detective and the trust of his girlfriend who still works with the police unit, Ho-yeung has secretly been working against Chun-kin, who has been kept in the dark the whole time. But when Chun-kin starts to suspect the clues within multiple murder cases, a tense standoff between the brothers unfolds.
Una guardia urbana inclusiva creada con el fin de mejorar la imagen de las fuerzas de seguridad. Sin quererlo, mientras todos buscan descubrir qué función tiene la guardia, se enfrentan a una extraña banda criminal.