This is the first kung fu comedy produced shortly after Jackie Chan joined the嘉禾company, fully demonstrating his agility and the indomitable courage of a little guy. It was the first time that Jackie Chan served as writer, director and actor all at once, creating an excellent entertainment piece with distinct personal characteristics for himself. The movie begins with a lively lion dance competition. Chen Kun, the senior brother of the Red Martial Arts Hall who had won the championship for consecutive years, claims to be sick and does not participate in this year's competition. Instead, Jackie Chan participates on his behalf. Although Jackie Chan spares no effort, he still loses to the Blue Martial Arts Hall. It turns out that Chen Kun was bribed by the opponent to defeat his junior fellow disciple. After the master learned about this matter, he expelled Chen Kun from the door. Jackie Chan knows about the betrayal of his senior brother...