Hwang Jang-Lee and his partner are traveling musicians. They get their drum and trumpet back from the protection guy and defeat his gang. A girl is added to the team and they travel to perform and sell a cure-all medicine. On a pier they encounter another protection gang and have a fight. A Chinese guy is added to the story. He has returned from school to find his father's martial arts school has been converted to a bar for gangsters. Things escalate with the gangs and then Hwang Jang-Lee gets involved with a girl and the pace drags.
Early South Korean martial arts movies are a breed to themselves. They were made not to show the uniqueness of the Korean martial arts culture but to copy Hong Kong and Taiwan martial arts movies. To copy meant to profit. In some ways this was Hwang Jang-Lee's introduction to the world. He had made many movies before but Taiwan and Hong Kong just wanted him as the villain not for the leading man. In this movie, made in his adopted home country, he was a leading man ready to take on the world. It was too little too late. His career was already 60% over.