ロボットによって全ての世話をしてくれる夢のような空中都市メトロシティ。そこで生活をしているテンマ博士の息子トビーは、ピースキーパーの実験中の事故によって命を落としてしまう。 悲嘆にくれるテンマ博士はトビーの姿と記憶を持ち、究極のエネルギー『ブルーコア』を搭載した人間にそっくりなロボットを作り上げた。しかし、息子として迎え入れたもののどこか本物とは違うことを痛感したテンマ博士は彼を拒絶してしまう。 自分がロボットであることを知りブルーコアを狙うストーン大統領にも追われ地上へ落ちた彼は、コーラたち地上に住む子供達と出会い「アトム」と名乗り、自分の居場所を探すために彼らと暮らすこととなった。
Astro is a robotic boy created by Dr. Tenma to replace his late son. When Tenma destroys his laboratory and shuts down Astro, the Ministry of Science revives him and tries to give him a normal life as a 6th-grade student who occasionally helps keep renegade robots from causing harm.
When the world's seven most advanced robots and their human allies are murdered one by one, Inspector Gesicht soon discovers that he's also in danger.
In the year 2000, Dr. Boyton creates a super-robot in his deceased son's image. He calls the robot Astro Boy. Astro Boy can swim oceans, leap over mountains, even fly into space on his own power. However, Astro Boy can't replace his son. Dr. Boyton becomes dissatisfied with the boy robot and disowns him. Astro Boy is befriended by Dr. Packadermus J. Elefun of the Institute of Science, who guides him through his adventures. Endowed with super strength, rocket-powered flight, a selfless heart and a kind demeanor, Astro Boy fights a never-ending crusade against the forces of evil!
In 2030 AD, after being abandoned by his creator, a young boy robot is rescued by an Android Advocate, Dr Elefun, who adopts him as his own and guides him in the use of his special powers to aid and protect mankind and robot-kind.
Japan in the near future suffers an unexplained major disaster. Five years later, reconstruction is well underway. Two young researchers at a university are pinning all their hopes on robot development. Now their new interpretation of the eternal hero Astro Boy up until his birth is just about to start!
Mars is a boy robot named as the god of war, created to be a military weapon, but adopted as a human child. In a distant future, when people and androids live together, he ventures to discover his true nature.
A high-flying robot boy with superpowers gets ready to blast off into new adventures alongside Suzu and Astro Kitty to save the Earth from destruction.
