In this samurai movie, an evil warrior violates his samurai codes of ethics by stealing some gold to pay an unfair government tax and then murdering the fishermen who witnessed the robbery. His actions are derided by his brother-in-law. In anger, the samurai casts his sister's husband out of the family. The outcast then joins a Shogunate to get his revenge. After observing the bad samurai as he moves beacon lights so he can deliberately wreck a ship, the two men engage in a deadly fight. The evil warrior loses and the brother-in-law saves face.