Lung (Jackie Chan) is a talented fighter but prefers to spend his time loafing around and picking fights, despite orders from his grandfather (James Tien) not to fight. Unknown to him, a brutal general (Yam Sai Kun) has been slaughtering all the people from his grandfather’s clan. When the general recognizes Lung’s style of kung fu during one of his street fights, he hunts down Lung’s grandfather and kills him.