Based on the popular manga by Kazuo Koike and Goseki Kojima, this classic 1970s martial-arts series follows the adventures of Ogami Itto (Kinnosuke Nakamura) and Daigoro (Takumi Sato) -- a father-and-son team of assassins who sells their services to those in search of justice. Framed by the menacing Yagyu Clan for a crime he didn't commit, Ogami sets out on a tireless quest to clear his name and avenge his wife's brutal murder.