Peaceful times in feudal Japan are threatened by the bloody rise to power of cruel Lord Naritsugu. Above the law because he is the Shogun’s brother, the sadistic young Lord rapes and kills at whim.
Distressed by the Lord’s murderous rampage, top Shogun official Sir Doi secretly calls on esteemed samurai Shinzaemon Shimada to assassinate the evil Naritsugu. Outraged by Lord Naritsugu’s vile acts, noble Shinzaemon willingly accepts the dangerous mission. Shinzaemon gathers an elite group of samurai, each with their own deadly skill and together they plot to ambush Lord Naritsugu on his annual journey home from Edo.