However, Wah had secretly colluded with Mad Man (Shing Fui-On) in dealing with illegal business.

Man's superiors assign him to assist Interpol officer Ms. Hon (Lee Siu-man), who has come to Hong Kong to investigate smuggling case, and ensure her safety.

However, Ms. Hon disapproves of the Hong Kong Police and starts the operation by herself, where she was captured and murdered by Wah.

However, this decision has led her to a fatal disaster when Wah brings Mad Man to ask her for the negative of the photo.

During an intense battle, Chan punishes his own relations in the cause of justice, and shoots his son dead in order to save Man.