As winds of change sweep Japan, an honest man joins the Shinsengumi out of admiration for its leader, and because he wants to live and die as a samurai. However, as his involvement grows, reality and idealism come into deadly conflict.
In a warehouse area at night, a drunk chief engineer is stabbed to death by someone who whistles. After the break of dawn, two seamen join the crew of a rusty cargo ship Kaiyo Maru. One is a troublemaker with bad attitudes, Senkichi Nomura, who pursues an enemy in order to take revenge for his father's death. The other is Keizo Sasaki, a buff, eagle-eyed man on board for a certain mission.
[Period covered: 1582-1594]. As the film opens, the warlod Nobunaga Oda rides to Iga Ayanokuni shrine. He is asked if he thinks he has destroyed all the ninja who opposed him and answers that he suspects that there may be more. A servant brings water and tests it first. The paige dies and we hear gunshots as two ninja flee the scene. His suspicions confirmed, Nobunaga oversees the execution of captured ninja and decides that, in the future, he needs a much crueler method of execution. The daimyo Hideyoshi comes to visit.
