Action film about Chinese resistance after Japanese invasion in 1930's...

A crooked Hong Kong cop designs a bomb disguised in a soda can and sells it to two Japanese traffickers; however, the cop's associate steals the bomb, not wishing for it to be used for evil means. He hides the bomb before he is slain by the traffickers. The incident, afterward, brought together three witnesses mixed into the plot: a suave rock scientist, a wisecracking taxi driver and an overzealous biker. They must team up to locate the missing bomb before the dealers find it....

Michelle Yip of the Hong Kong police is a mild-mannered Kung Fu expert; Michael Wong from air security is happy-go-lucky, stuck on himself, constantly talking, and smitten by her; Yamamoto is quiet, hard-boiled, leaving the Tokyo police to spend time with his wife and daughter. They form an alliance when they foil a hijacking on a plane flying a mob prisoner from Tokyo to Hong Kong. The mobster and his would-be rescuer die; this sets off two avengers who were their blood brothers. Our three cops become the targets. A high-speed chase, a car bomb, the destruction of a nightclub, a spectacular suicide, dead bystanders, and a flying coffin litter the landscape by the end....