Chung, a delivery boy, rings an order to a nearby martial arts school. When he punches a bag and kicks out the instructor for money, he demonstrates that he, too, is a kung fu student. Chung's life has been difficult. His father constantly nags him to work hard. Chien-Pe, a disabled thug who runs a gang, yells at him one day. Chung fights and beats them up, and as a result, he is fired from his job. Chien goes to his boss, Tai Chung, to find Chung.