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.

A young maniac starts a terrorist spree in Hong Kong. The police do not manage to catch the culprit. When the wife and child of inspector Tsui get wounded in one of the explosion, he intends to catch the dangerous maniac.

Two fellows who make friends under the funniest circumstances cause a riot through a series of jobs that they take on and lose at an alarming rate.