Tai Fei discovers he has a son, and soon realizes that he is a triad member involved in the Tung Sing gang which deals in narcotics.

Chan Siu Hong is a lawyer who goes into jail after hitting a vicious policeman. He's welcomed by the inmates because he convinces fellow inmates not to use violence to settle every dispute.

Sky is the king of the underground car racing circuit. After winning a hard-fought race, Sky is set up by his archrival Tang Fung.

North Quick Hands, a gambler, killed a gang in revenge for his friend, for which he was sentenced to prison. South Tin-lone waited for Quick Hand's release, so that he might be recruited into the gang. But Quick Hands refused. Meanwhile, Sau Tin, a Hong Kong policewoman addicted to gambling, went to Dongguan to seek a husband. She helped Quick Hands to leave China by arranging a fake marriage, as he promised to teach her some gambling tricks. South Tin-lone and his gang followed Quick Hands to Hong Kong and a series of fights ensued...

Inspector Lee and his team look into the mysterious disappearance of a seedy loan shark but find no real leads. Amazingly, the culprits fall into their laps. Four young men, led by Wong Wing-Man, confess to the killing. They were deep in debt and found the murder of their friend to be the only way out. There is one problem, though: no physical evidence.