A samurai is ordered by his lord to go to Edo and investigate the truth behind the rumor of a rebellion against him.

Kind of the Japanese equivalent of the gunfight at the O.K. Corral, this film is a fictionalized version of the gang battle in the later Edo period, which ended up in a direct duel between Kira no Nikichi (Ryunosuke Tsukigata) and Ano Toku (Dennosuke Ichikawa).