Naoko Sakabe

Story of a resourceful hobo (Kobayashi), a con woman (Takamine) who pretends to be a victim of the Nagasaki A-bomb, and two orphaned children who become a most atypical Japanese family.

The story tells of a group of samurai who were left leaderless (becoming ronin) after their daimyo (feudal lord) was forced to commit seppuku (ritual suicide) for assaulting a court official named Kira Yoshinaka, whose title was Kōzuke no suke. The ronin avenged their master's honor after patiently waiting and planning for over a year to kill Kira. In turn, the ronin were themselves forced to commit seppuku for committing the crime of murder.

This Japanese film speculates on the events which lead the U.S. and the Soviet Union into a nuclear Armageddon.