A salaryman's drunken ravings in public attract the attention of journalists who coerce him into telling them his life's story.

Daisuke Honda, a war photographer in Vietnam, meets Yuriko Sawanouchi, a stewardess on his plane back to Japan. After drinking with her at a Tokyo bar, he becomes involved in saving Yuriko from assassination by stylish, female ninjas. When trying to rescue Yuriko from kidnappers, Daisuke discovers a group of foreigners are hunting for a WWII-era treasure hidden on an island by Yuriko's father.

Japanese police detective Saburo Fujioka is suspected of corruption, demoted, and sent to the city of Kojin. Kojin is the scene of fierce fighting between rival gangs. Fujioka is assigned to investigate the death of the wife of gangster Tetsuo Maruyama of the Kozuka gang, probably at the hands of one of the Oka gang. During a gang gunfight, Maruyama is rescued by Detective Fujioka and the two become friends. But Maruyama insists on avenging his wife's murder, even if it means conflict with his new friend.

During the mayoral election, two ex-prisoners decide to replace the lucky pen of an annoying candidate with a mini-bomb.

The legendary empire of the lost continent of Mu reappears to threaten the world with domination. While countries unite to resist, an isolated World War II Captain has created the greatest warship ever seen, and possibly the surface world's only defense.

Intelligence director Suritai asks agent Kitami to steal money from anti-government guerrillas.