Sergeant Tong is wracked with guilt after he unwittingly kills a young girl whilst capuring a criminal named Cheung. When the girl's sister is later kidnapped in a ploy to get Cheung released, Sergeant Tong vows to find and rescue her before she comes to harm.

After a botched assassination attempt, the mismatched duo finds themselves in Paris, struggling to retrieve a precious list of names, as the murderous crime syndicate's henchmen try their best to stop them. Once more, Lee and Carter must fight their way through dangerous gangsters; however, this time, the past has come back to haunt Lee. Will the boys get the job done once and for all?