Special Duties Unit
An extended showdown at the Police Headquarters ensues, resulting in the deaths of three criminals, multiple policemen including a Special Duties Unit squad, and Wai, who is beaten to death by Tien. Chan and Fong almost kill Tien in revenge, but at the last minute realise their duty as a police officer is to arrest, not kill. Cheung throws a bag of grenades, killing Tien in the explosion (along with the remaining money) while Chan and Fong escape with Wai's body. Cheung is later led to an ambulance by unsuspecting officers. He is subsequently shot dead by Chan and Fong when he tries to kill Law in another ambulance. Law lets Chan and Fong go, and they return to their police duties, but as a detective and a beat cop respectively. They also help take care of Wai's grandmother.