Leung Chang (Yuen Biao) is a young man in a wealthy family living in Foshan in the mid-19th century. He is a martial artist trained by two instructors in his father's employ. He has fought over three hundred times in Foshan and won every fight, but unbeknownst to him, his father has arranged for his servant Yee Tung-choi (Chan Lung) to bribe Chang's opponents to lose to him in order to protect him. This has caused Chang to believe that he is a world-class fighter, but in truth he hasn't even mastered the basics of kung fu and any real fighter could easily defeat him. Everyone knows this but him, giving him the nickname "The Prodigal Son" behind his back, because of the money he is costing his parents who pay to keep him from getting injured.