Three rival gangs embark on a search for Bruce Lee's handwritten "finger fighting " manual.

Decent, simple, honest Chinese farmhand and ace martial artist Tai-Lin goes to the Philippines to seek his fortune. He befriends scruffy petty street hoodlum Siao-Mao and gets a job as a dock worker. When Tai-Lin discovers that the people he works for are involved in a crime syndicate that specializes in smuggling opium, he quits his job and joins forces with two fellow martial artists against the evil organization.

Given a jar of sweets by a beautiful air-hostess, Chan finds that each one contains a diamond (diamonds belonging to a ruthless smuggling gang). Chan finds out the hard way that when there’s no place to hide and nowhere left to run, a fight to the finish is the only way out!