After the funeral companies held in reminiscence of two officers killed throughout the Cold War, Commissioner Sean Lau (Aaron Kwok) receives a telephone name by which is knowledgeable that his spouse had simply been kidnapped. Lau asks the kidnapper to launch him from jail on Joe Lee (Eddie Peng) in trade for his spouse. To save his spouse, he passes over commonplace police process and invokes the emergency switch it on Joe in jail.
After casual energy switch managerial subordinates and take private duty for the complete operation, Lau follows the directions obtained from his captor to hold it on Joe. However, Joe manages to flee with the assistance of a number of accomplices detonate a bomb on the police station. Following the explosion, the press and politicians require instant clarification on the operation. Fearing the existence of a mole, Lau asks Billy Cheung (Aarif Rahman) investigator that has helped previously to kind an impartial unit of the police to shed mild.
Meanwhile, M. S. Lee (Tony Leung Ka-fai) deputy who’s within the final days earlier than retirement, his son offered by a former commissioner who’s now a businessman and offers IT tools for the police. Later it’s found that goals Lau’s elimination from workplace. A legislative committee meets to note flaws in Operation Cold War and the latest actions of Lau. Oswald impartial investigator Kan SC (Chow Yun-Fat) is satisfied by his buddy, the Minister for Justice to be on the committee, however he swears he’ll act independently as he thinks match.