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.
津村まこと
as Astro Boy/Atom (voice)
丸山美紀
as Uran (voice)
勝田久
as Dr. Ochanomizu (voice)
小清水亜美
as Ena (voice)
大塚周夫
as Dr. Tadeue (voice)
石塚運昇
as Igza (voice)
くまいもとこ
as Tamao (voice)
千葉進歩
as Shibugaki (voice)
佐藤ゆうこ
as Kenichi (voice)
中嶋聡彦
as Captain (voice)
Akiko Kawase
as Female Personnel (voice)
宮下栄治
as Operator (voice)
