"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.