In 1651 during the Edo Period, the 11-year-old Ietsuna becomes the 4th Shogun, leading his influential chief retainers to plot against each other to take the reins of power. The Hattori family, a clan of Iga Ninjas who were former vassals and protectors of the previous Shogun, Tokugawa Ieyasu have since fallen from grace. Their third generation ancestor, Hattori Hanzo (Sonny Chiba) is now working as the master at public bathhouse in Edo City. Etsuko Shiomi, Hiroyuki Sanada, and Kenji Oba stars in this series. Extras include new interviews with Chiba and 12 page booklet on the series by Patrick Macias.