A cynical samurai is left as the sole survivor to fulfill a plot to assassinate the puppet of a villain intent on usurping the shogunate in the 17th century. A Shogunate Elder connives to rule Japan by making his puppet, the Shogun's brother Tsunashige, the next Shogun. The best strategist in Japan, Yamaga, leads a plot to stop the Elder, but his cabal is betrayed and most of the conspirators are captured and tortured.

• Toei Company
• Tōru Abe
• Mikijiro Hira
• Yoshio Inaba
• Chiezō Kataoka
• Chōichirō Kawarasaki
• Nami Munakata
• Kotaro Satomi
• Minoru Ōki