On the dark path of swordsmanship in a Futuristic yet Feudal Japan it is said that the one who becomes No.1 will rule the world. But the only rule in this world is that only the No. 2 is allowed to fight the No. 1. The No. 2 the Afro Samurai travels the road looking for revenge on the man who murdered his father in front of him when he was just a boy a three-armed gunman who is the lord of the dark swordsman's road and the current No. 1.
