Stephen Chow returns as Chow Sing-Sing, the obnoxious undercover cop who seems to get into all sorts of trouble, only this time he doesn’t go back to school. Instead, Chow goes undercover as the husband of a wealthy socialite (Anita Mui), which doesn’t sit well with his fiancée played by Cheung Man who tries to convince Chow to quit working as undercover.
A year after losing his friend in a tragic 4,000-foot fall, former ranger Gabe Walker and his partner, Hal, are called to return to the same peak to rescue a group of stranded climbers, only to learn the climbers are actually thieving hijackers.
An LA detective is murdered because she has microfilm with the recipe to make cocaine cookies. A "Lethal Weapon" style cop team tries to find and stop the fiends before they can dope the nation by distributing their wares via the "Wilderness Girls" cookie drive.