Lau Ching, a Mainlander with an incredibly powerful right arm, arrives in Hong Kong to find his cousin. He befriends with a drifter named Handsome, and a martial artist girl named Mandy. In order to woo her, Ching participates in a fighting competition in hopes of winning a $10 million prize, and must defeat his love rival, Wai, in the ring.

Stephen Chow
as Lau Ching

Kenny Bee
as Handsome

Sharla Cheung
as Mandy Fok

Corey Yuen
as Master Fok Wan

Vincent Wan Yeung-Ming
as Cheng Wai

Shing Fui-On
as Master Chiu Tung

Susan Ha Chi-Chun
as Flute Ping

Tung Chi
as Keung

Woo Fung
as One of the 4th Brother

Sze-Ma Wah-Lung
as One of the 4th Brother