Modern day Hong Kong is the backdrop for this action adventure about the narcotics trade. A convicted felon named Peter Chin breaks up a bloody barroom battle and saves the life of a gang member. He is rewarded with an introduction to one of the gang's lieutenants, a beautiful woman named Daisy. Together they plot to extort millions from a rival gangland chief, but their efforts are foiled by an uneasy truce between the two leaders. Knives, flying kicks, fists, guns and bombs come into play as Peter strives to keep a gangland leader from escaping with a fortune in drugs and money.

Shih Hsin-chiao (Ling Yun) is a journalist who trained under mentor Lu Tao-jan (Chin Han). Lu's daughter, Chih-pai (Tien Niu) is infatuated with the good-looking and intelligent Shih, but Shih sees her only as a child. When he returns from a long stay abroad, he finds that things have changed. Chih-pai is now an attractive young woman in a relationship with rich boy (Wang Yu). A miscarriage and Lu's death throw Shih and Chih-pai back together again.