The story begins with a feud between two families in the early days of the Republic of China. One family side’s with the Japanese and the other is totally wiped out. Enter our hero who resolves to wreak revenge on the murderous traitors — its furious kung fu fighting all the way!

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.

The Devilish Killer is the most dangerous fighter that ever lived...After defeating all of China’s martial art factions in a grand battle, he decides that his victory cannot be complete unless he possesses the two Thunderbolt Swords. The leader of the Thunderbolt Sword clan sends his two sons into hiding knowing that sooner or later the Devilish Killer will come for them and destroy his clan. After the two sons leave, taking the Thunderbolt Sword with them, fate leads them to meet a young swordswoman who owns the other Thunderbolt Sword and together they unite their swords and train for the ultimate showdown with the Devilish Killer.