In 221 BC, Qin Shihuangdi conquered the rest of China. Qin's great accomplishments and also his serious faults are showed in this film. Qin adopted autocratic dictatorship and led a luxurious life: abolition of feudalism and the centralization of power in the form of a now-hereditary bureaucracy loyal to himself; burning books and burying scholars; the construction of a sumptuous palace for his concubines and also the Great Wall.

Toramatsu is a very enthusiastic policeman. Believing that the police should help others he is dismissed the force when his pistol is stolen while doing one of his good deeds. He saves a child from drowning, restores it to his mother, then finds that someone has run off with his gun and later uses it to kill. Then he breaks up a group of hoodlums attacking a young girl named Mieko, and the police, his former friends, deciding he has gone too far, decide to sue him. On top of this the girl gets hurt and, consequently, a child from the kindergarten where Mieko teaches is kidnapped on his way home. Impersonating a policeman he tracks down the gangsters and rescues the boy. Due to this he also uncovers a scandal which allows the police to make a long due clean up in the political world. As a reward for all of this he wins the regard of the girl but now faces a stiff prison sentence for impersonating the policeman he had been and which, at heart, he truly remains.

The eldest daughter of a rural family Mon returns home from Tokyo pregnant after an affair with a college student Kobata, which causes a scandal that will threaten the marriage prospects of the younger sister San, in her cash-strapped family. The ill-tempered eldest brother Inokichi decides to take on the role of disciplinarian, with harrowing results.

Kinichi and Akiko meet when they visit their fathers in prison. After successfully gambling on a bicycle race, they spend an enjoyable day together at the beach.

Tied to a mountain between her brutalizing spouse and her secret lover, disaster strikes; the authorities accuse her of murder and prompt a confession.

Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.

In 8th-century China, the Emperor grieves the death of his wife. The Yang family wants to provide the Emperor with a consort so that they may consolidate their court influence. General An Lushan finds a distant relative working in their kitchen, whom they groom to present to the Emperor. The Emperor falls in love and she becomes the Princess Yang Kwei-fei. The Yangs are then appointed important ministers, though An Lushan is not given the court position he covets.