The spaceship
AAB Gamma is dispatched from
Japan to the planet
Mars to investigate reports of
UFOs seen near the Red Planet. When the spaceship arrives, it encounters one of the UFOs, which suddenly sprays the
AAB Gamma with spores. A sample of the spores is returned to Earth, where one of them begins to develop. The spore is accidentally exposed to acid, and grows into a giant creature that is named "Guilala". It continues to feed on any kind of energy source, and grows bigger and more powerful. The monster begins a reign of destruction through Tokyo. It spits fireballs, feeds on nuclear fuel, turns into a flaming orb to travel great distances by air in mere minutes, and destroys all aircraft and tanks in its path. Guilala is finally defeated by
fighter jets laden with bombs, which coat it in a substance called "Guilalanium", a substance that prevents it from absorbing energy. This causes Guilala to shrink down to its original spore form. Stored in a glass container filled with Guilalanium, it is rendered permanently harmless. The government promptly launches it back into space, where it will orbit the Sun in a nigh-inescapable
heliocentric orbit for the foreseeable future. ==Production==