When a tough police officer's (Chow Yun-Fat) partner is brutally murdered, he joins forces with another loose-cannon cop (Tony Leung) to exact his own bloody revenge on the gun-smuggling gangsters responsible for his friend's death. A lot of action, guns, and violence, all masterfully rendered by action maestro John Woo (THE KILLER, MISSION IMPOSSIBLE 2). This is the last film the director made in his native Hong Kong before emigrating to the United States.