In this humorous paean to the joys of food, a pair of truck drivers happen onto a decrepit roadside shop selling ramen noodles. The widowed owner, Tampopo, begs them to help her turn her establishment into a paragon of the "art of noodle-soup making". Interspersed are satirical vignettes about the importance of food to different aspects of human life.

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.

Kaji is sent to the Japanese army labeled Red and is mistreated by the vets. Along his assignment, Kaji witnesses cruelties in the army and revolts against the abusive treatment against the recruit Obara. He also sees his friend Shinjô Ittôhei defecting to the Russian border, and he ends in the front to fight a lost battle against the Russian tanks division.

After the Japanese defeat to the Russians, Kaji leads the last remaining men through Manchuria. Intent on returning to his dear wife and his old life, Kaji faces great odds in a variety of different harrowing circumstances as he and his fellow men sneak behind enemy lines.

A man gets lost in an underground passage. He follows the "guide" through the passage, but one after another, strange things happen to him. Is this space real? Or an illusion? Will the man be able to escape the passage?