In feudal Japan, during a bloody war between clans, two cowardly and greedy peasants, soldiers of a defeated army, stumble upon a mysterious man who guides them to a fortress hidden in the mountains.

After handing in a report on the treatment of Chinese colonial labor, Kaji is offered the post of labor chief at a large mining operation in Manchuria, which also grants him exemption from military service. He accepts, and moves to Manchuria with his newly-wed wife Michiko, but when he tries to put his ideas of more humane treatment into practice, he finds himself at odds with scheming officials, cruel foremen, and the military police.

The story of Sanshiro, a strong stubborn youth, who travels into the city in order to learn Jujutsu. However, upon his arrival he discovers a new form of self-defence: Judo. The main character is based on Shiro Saigo, a legendary judoka.

1967 film by Kihachi Okamoto

A samurai answers a village's request for protection after he falls on hard times. The town needs protection from bandits, so the samurai gathers six others to help him teach the people how to defend themselves, and the villagers provide the soldiers with food.