After A-Zu's (Andy Lau) mother passed away, his father (Paul Chun) used improper methods to discipline him, and the relationship between the father and son became alienated. A-Zu left home to live alone, and his living conditions were not satisfactory. Fortunately, his girlfriend A-Yi (Gigi Leung) encouraged and cared for him. A-Zu has always loved racing motorcycles, but he has a strong personality. Once he raced with Dawei (David Wu) in his father's team. As a result, A-Zu was injured in the race and was in a coma for ten days. His girlfriend took good care of him and advised him not to race anymore, so after A-Zu recovered, he decided to give up racing and run a good repair shop. However, his good friend Jiale (Chin Ka-lok) died in a race with Dawei. The incident changed A-Zu's original intention, but A-Yi left disappointed...