Tokugawa Japan faces uncertainty as Yagyu Jubei is tasked with finding ten missing shogun spies. Matsukata Hiroki, a veteran of Japanese cinema, delivers a compelling performance as the seasoned Jubei in this modern samurai film. Called back from retirement by the Shogun, Jubei investigates a clan suspected of plotting a rebellion with explosives. He teams up with a skilled female ninja and journeys to the Shirakawa domain, where their fighting abilities are constantly challenged as they attempt to dismantle a conspiracy that could reignite a period of civil war. Matsukata Hiroki's portrayal connects to his father, Konoe Jushiro, who famously played Yagyu Jubei in the 1960s, completing a legacy.