In 1930s Shanghai, a farmer joins a gang and learns kung fu before meeting a master who trains him to defend their school's honor from the Japanese.

In this television series adaptation of the Bruce Lee movie, Chen Zhen is a young farmer whose family has been killed by thieves. Along with his sister, he goes to Shanghai to find a way to rebuild his land. However, it is not long before he gets into trouble with a local gang and because of his kung fu skills, ends up joining the gang. It is not long before Chen meets Master Fok Yuen-Gaap, the man who changes Chen Zhen's life. Chen joins Fok's school, falls for a Japanese woman, and fights to keep the honor of the school, all while the Japanese have taken over the territory in pre-World War II Shanghai.—Ninja01