Sean Lau is promoted to Commissioner of Police while Joe Lee is sentenced to prison. However, the terrorists kidnap Sean Lau's wife and daughter and demand an exchange with the detained Joe Lee. The greater power behind Joe Lee gradually surfaces. M.B. Lee who is retired is once again embroiled in a situation where there is no clear line drawn between a friend and a foe.
Cold War 2
The sequel continues with Sean Lau (Aaron Kwok) promoted to Commissioner of Police after the operation codenamed "Cold War" turned out a success. M.B. Lee's son Joe Lee (Eddie Peng) is sentenced to prison. However, the terrorists kidnap Sean Lau's wife and daughter and demand an exchange with the detained Joe Lee. The greater power behind Joe Lee gradually surfaces, jeopardizing the check and balance of power between the police, the judiciary and the Independent Commission Against Corruption. M.B. Lee (Tony Leung Ka Fai) who is retired is once again embroiled in a situation where there is no clear line drawn between a friend and a foe.