Lone Wolf and Cub: Sword of Vengeance

The story of a Ronin (i.e. a masterless samurai) who wanders the countryside of Japan with his small child, having various adventures.
In this first film of the Lone Wolf and Cub series, adapted from the manga by Kazuo Koike, we are told the story of the Lone Wolf and Cub's origin. Ogami Itto, the official Shogunate executioner, has been framed for disloyalty to the Shogunate by the Yagyu clan, against whom he now is waging a one-man war, along with his infant son, Daigoro.