When an underhanded pharmaceutical company goes to a remote tropical island to steal King Kong for advertising purposes, they get more than they bargained for when the gigantic ape attacks an unsuspecting village and an enormous octopus.

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.

The closest Japanese cinema ever came to the full-blown Broadway-style musical, with singing and dancing on the streets of Tokyo, music by avant-garde composer and jazzman Toshiro Mayuzumi, lyrics by renowned poet Shuntaro Tanikawa, and direction by one of Toho’s most prominent “new wave” directors, Eizo Sugawa. Popular jazz drummer and actor Frankie Sakai stars in this comic version of the “industrial competition” genre: two tourism companies compete for foreign clients in the run-up to the 1964 Tokyo Olympics. Highlighting the coming internationalization of Japan, the film dramatizes the felt tensions between tradition and modernity, the pressures of the “economic animal” lifestyle, and the energy of high economic growth.

During WWII, Germans obtain the immortal heart of Frankenstein's monster and transport it to Japan to prevent it being seized by the Allies. Kept in a Hiroshima laboratory, it is seeming lost when the United States destroys the city with the atomic bomb. Years later a wild boy is discovered wandering the streets of the city alone, born of the immortal heart.