The film opens with a black-and-white documentary-like section which recounts the checkered past of Cromartie High, built in 1920 and destroyed six times since then. Then on to the present day school full of
violence and
thugs, a school so desperate for students, they even enroll a
gorilla and a bad-tempered
robot. Takashi Kamiyama (played by
Takamasa Suga), a top student, comes to the school to try to join his hapless friend Yamamoto (
Tak Sakaguchi in a cameo role) but Yamamoto can't even pass the entrance exams for Cromartie so Kamiyama is left to go it alone. His efforts to improve the school include starting a Global Defense Force to protect earth from
aliens. The aliens when they do arrive are space apes Gori (screenwriter Shōichirō Masumoto in a furry suit) and Lla (both straight out of the
1971 TV series
Spectreman) and the plot becomes a series of parodies of
science fiction films,
martial arts movies and high school comedies among others. ==Production==