Yuen Tak Wah (Andy Lau) has been practicing Taekwondo since he was a kid and becomes an expert at it with his best trick being the 720 Degree Whirlwind Kick. Wah later becomes a cop and uses his good skills to contribute in cracking cases which leads to the jealousy of Officer Cheung Yeung (Roy Cheung), the leader of the rival team. Cheung is also a Taekwondo expert who has a won a championship at the Hong Kong Police Force's Taekwondo Tournament.

Undercover cop Lok Hwa takes two years to become the trusted lieutenant of rising Hong Kong drug lord, Feng. The night of the big bust, Feng's flaming car crashes spectacularly into the sea; Feng is presumed dead. Hwa returns to the force and to June, his patient girl friend. Also, to save Feng's lover Yung from a life of crime, Hwa gives her his pager number and promises to be there for her. A year later, Feng reappears, asking Hwa's aid with one last task before he returns to the mainland forever. Feeling sentimental, Hwa agrees to help and finds himself set up to take the fall in a drug war. June is in danger, too, and death awaits as Yung realizes it's Hwa she loves.

For as far back as he can recall, nationalist martial-arts expert Hung Hei-Kwun (Yen) has idolized mysterious Sun Moon Sect leader "Red Dragon" -- whose hatred for the Ching Dynasty is well known throughout the land. When Hei-Kwun learns that "Red Dragon" is actually his father, Hung Ting-Nam, he quickly resolves to meet his father and idol face to face. Though Hei-Kwun's plans are thwarted when Ting-Nam's plan fails and the powerful leader is killed, Hei-Kwun vows to travel to the Shaolin Temple and regroup the now disbanded Sun Moon Sect so that he may avenge his father's untimely death.

Hotheaded cop Bill Chu gets relegated to the Emergency Unit after a dustup with his inept boss. When the mob kills Chu's pal and ex-colleague during a turf-war hit, he rounds up his motley department cohorts and embarks on a mission of revenge against the gangsters.

When terrorists abduct a deadly government attack robot, the call is put out to the Gen-Y Cops, an elite task force with lethal fighting skills. Together with a trigger-happy FBI agent, the Gen-Y Cops race against time to destroy the robot before it destroys their city.

For never-do-well compulsive gambler Fong, there's only one thing more fearsome than debtors at his doorstep - having to coax a crying baby. But what if the baby becomes his golden goose to fend off his debtors? Can he overcome his phobia of diapers, milk bottles, and cloying lullabies?