Based on

Movies like Duel with Samurai (1971)

During the Ming dynasty in China, the coastal areas were rampant. A Wokou who refers himself as the Nippon Ronin (Chan Hung-lit), colludes with the coastal local tyrants of Fujian and Zhejiang Provinces, along with cult religious groups. They occupy Baiyunzhuang and plundered everywhere. Young warrior Fan Chen-tung (Kong Ban) leads a resistance group to retaliate which prompts the Chinese martial world to share the same hatred against the Japanese and tyrants.