A steel-forged superhero intercepts an alien invasion plot to weaponize Earth's infrastructure and must rescue hostages to prevent planetary destruction.
The superhero Starman is sent by the Emerald Planet to protect Earth from belligerent aliens from the Sapphire Galaxy. The Sapphireans (or "Spherions") kidnap Dr. Yamanaka and force him to use his spaceship against the Earth.
Teruo Ishii, Nagayoshi Akasaka, Akira Miwa
Rating: 5.1/10 (19 votes)