In 1950, many martial artists moved into Hong Kong to open boxing gyms. Including Ye. Wen (Tang Wenlong) did not lose his reputation, attracted the attention of Zheng Delong (Lin Fengyi), the owner of the Kowloon walled village. After telling about the death of Fang Fang on Ye Wen, they wanted to remove it by the hands of the police. A mysterious person appeared and saved Ye Wen. Ye Wen — self-confident, with student Amin Akian, crossed the border of the Kowloon Walled City. They planned to bring Zheng Delong to justice.