The interplanetary spacecraft Galileo II carries Atom and his friends to Titan, a satellite of Saturn. However, what awaits them when they arrive there is an attack from an unknown entity. What appears is a mechanical life form called "Igza" that wants to destroy humans. The battle between Atom and Igza unfolds in the far reaches of space.
Astro Boy/Atom (voice)
Uran (voice)
Dr. Ochanomizu (voice)
Ena (voice)
Dr. Tadeue (voice)
Igza (voice)
Tamao (voice)
Shibugaki (voice)
Kenichi (voice)
Captain (voice)
Female Personnel (voice)
Operator (voice)
Arifi (voice)