Daiei Film Company's three biggest stars shine in this exciting story about Vice-Shogun Mito Komon's journey to the land of the Ainu. As the shogun's uncle, Lord Mito traveled about the nation seeking to make sure that corruption and injustice did not go unpunished. Traveling together with his two faithful bodyguards Kaku and Suke, they board ship for a voyage to the far northern island of Ezo (modern day Hokkaido) where the indigenous people called "Ainu" live. Somewhat like American Indians, the Ainu had their own culture which had not been subjugated by the Matsumae clan, rulers of the vast island. A revolt is brewing within the leadership of the Ainu, which threatens to destroy their peaceful lives. The elder lord and his retinue are the only ones who can stop this reign of terror!
During the reign of Shogun Hidetada, both Hirate Musashi and Okamoto Musashi strive to become the finest swordsman in the land by defeating the Yagyu clan's top instructors and then taking on Sasaki Kojiro!
Famed detective Dandy Sashichi tries to solve who's behind the serial murders of six beautiful women under the aegis of local showman Ibaragiya. The film opens with the sextet humiliating a respected painter's portraits of them, driving the man to a suspicious suicide. Later, while celebrating his son's impending marriage into a wealthy family, Ibaragiya releases six pigeons from a pleasure boat, each with a rolled up drawing of one of the beauties tied to their legs. He offers a cash reward to whomever recovers the pictures, but they instead become death notices of which of the six are next to die.