"New York detective Nick Conklin is down on his luck and under investigation by Internal Affairs. He and his friend Charlie witness a brutal murder at the meeting between Mafia and Yakuza chieftains. After arresting a suspect named Sato, they are assigned to escort him to Osaka, where they promptly hand him over to his fellow gangsters, disguised as cops. Determined to pursue the escaped suspect, Nick and Charlie besiege the Osaka police for help....

After the head of a powerful crime family orders one of his friends to distance himself from another crime family, the violence between the two gangs begins to escalate with each encounter.

The number-three ranked killer in the Tokyo underworld carries out three hits, but bungles a fourth. Then both the women in his life try to kill him. The next thing he knows, he is playing a cat-and-mouse game with the very dangerous No. 1 killer ...

Illegal immigrant Tietou loses his Chinese papers and can't return home. His fellow countrymen help him find illegal work. An incident causes Tietou to save the powerful Yakuza boss Toshinari Eguchi. The mobster offers him the job of boss over the Chinese illegal immigrants. However, his non-violent methods soon make him unpopular and he begins to lose control over his men which leads to a giant gang war.

Starman battles American gangsters who threaten to destroy Japan with an atomic bomb.