In Japanese-occupied Shanghai, Chen-Jun joins the legendary Jin Wu Martial Arts Academy to train as an underground resistance fighter. But when Chen's master is killed by the Japanese, Chen unleashes his skills in an unstoppable fight for vengeance.

After his village it is brutally attacked by bandits, and his family gets murdered, Jun plans on seeking out distant relatives in Shanghai. On the way he is forced to join a criminal gang after they witness his martial arts skills. After a long and arduous journey, Jun eventual finds refuge at the Jin Wu Martial Arts Academy.