Tokaido Fullhouse(1963)

When Kanbe Nagakichi has his turf taken over by Ano-Toku, the father-in-law of his sworn brother Kira Nikichi sets in motion one of the most violent gang battles in Japanese history. Forced by the situation to choose between family and yakuza honor, Nikichi faces off against the vile combination of Ano-Toku and Kurokoma Katsuzo, villains so low as to ambush their foes using snipers. Nikichi, who owes allegiance to Boss Jirocho of Shimizu asks Jirocho to spare Ano-Toku’s life until events force a showdown between the 30 member Shimizu gang and a force of over 200 men fighting on Ano-Toku’s behalf. Meanwhile, a mysterious samurai may hold the key to deciding the outcome of this battle!