A group of military personnel transporting a hydrogen bomb are left to figure out how and why swarms of killer bugs took down their plane; the answer is more deliriously nihilistic, and convoluted, than they could imagine.
The spaceship AAB-Gamma is dispatched from FAFC headquarters in Japan to make a landing on the planet Mars and investigate reports of UFOs in the area. As they near the red planet, they encounter a mysterious UFO that coats the ship's hull with unusual spores. Taking one of the specimens back to earth, it soon develops and grows into a giant chicken-lizard-alien monster that tramples Japan.
Yoshie Nogami, a factory worker by day, works as a bar hostess at night. She begins a passionate affair with one of her regulars, but his changing demeanor and constant demands for money lead Yoshie down a dark path.
