A well-known gangster is released from prison, and decides look for his daughter with the help of a troubled young woman.

Hung is a street-wise smart aleck and Mak is his dumb sidekick. They are partners, mostly in unlawful jobs. One night, the two are spotted by Zaza in the middle of a heist. Consequently, they go to jail. Hung hates Zaza for this. In prison they are befriended by old timer Hui. The three run afoul of boss Orca and try to avoid Orca by insulting chief warden Ko. They are brought before correction officer who is none other than Zaza. Hung hates Zaza more.

Mr Lung, the boss of a criminal family, decides that his adopted son Alan should be his successor. However, this decision doesn’t suit Mr Lung’s biological sons Simon and Bowie, so they intend to get rid of their adopted brother. Alan manages to escape death and flee; he is determined to start new peaceful life. But will he be able to escape his past?