A young boxer joins a martial arts school to increase his skill so he can enter a martial arts competition. He leaves the school when he hears that a local gangster is terrorizing the town. He comes to the aid of a young singer and brings on the wrath of the local gang. He eventually enters the martial arts competition after learning iron palm technique and takes out all competition.

A King Boxer named Chow (Meng Fei) visits a friend in Thailand. She introduces him to her boyfriend, who's a Thai boxer. Chow saves the Thai boxer from some thugs and the two become friends. Chow teaches him the knife style. Meanwhile back in China, Chow's brother and sister look after his kung fu school. A Japanese martial artist (Kurata) visits the school looking for Chow. Kurata fights and beats his brother instead and develops strong liking for Chow's sister. Chow returns to China and has to defend his school's honor against Kurata.