Dragon arrives in town and notices that it's under the influence of the cruel Tang which controls the games, the prostitution and the loans of money with its fist of steel! When he discovers that his fiance was kidnapped by Tang, Dragon must unleash his fury.

Andy Lau stars as a juvenile delinquent trying to escape life in the ghetto. After releasing from jail, he is bullied by a local tyrant, Ma Chao-wei, at last his jail mates help him to settle the problem. However, Ma takes revenge on him. His friendship with a rich jail mate (Ho Kar King) is his only way out!