Tetsuwan Atom: Ao Kishi no Kan

Astro Boy, helping Professor Ochinomizu with planetary exploration, discovers a trash star floating in space. On this star, robots that can no longer move have been thrown away stacked on top of each other. On this robot mountain, Astro saves a robot soldier, Bemu, that escaped from the verge of death and takes him back to Earth. "I'm tried of fighting!" "I feel the same." While Atom and Bemu are together, a warm friendship is born and goes on to deepen. However, one day, the trash star draws near to the Earth. If it hits, the Earth would have a huge explosion. The Earth is in chaos. As this happens, there is just one way to stop the crash into Earth. Only this is... What will Astro do. Will he be able to protect a peaceful Earth as well as his friendship with Bemu?

In the distant year 2003, Japan is a technological utopia, and robots are everywhere. One such robot, Tobio, was built by the brilliant Dr. Tenma to replace his dead son. But when it soon becomes apparent that Tobio is an imperfect copy of his departed child, Dr. Tenma throws him out. He is rescued from the scrap heap by the benevolent Professor Ochanomizu, a crusader for robot civil rights. Now the little robot, renamed Astro Boy, is given a mission to defend Japan and the world from all manner of sinister threats. Using his seven super-abilities and 100,000 horsepower worth of strength to battle evil, Astro hopes to set an example to the world of the good which all robots are capable of.

Atom is a robotic boy that posses super human powers and an artificial intelligence system that is unparalleled to any robot. His creator, Dr. Tenma, created him to replace his late son, Tobio. Dr. Tenma soon destroys his laboratory, after the creation of Atom, and shuts down Atom. Soon after, Dr. Ochanomizu, the head of the Ministry of Science revives Atom, and tries to give him a normal life as a 6th grade student that helps the police agency keep renegade robots and bigot humans from causing harm. Atom faces extreme racism for being a robot, and he must discover the truth about his creator Dr. Tenma.

Creating a robotic boy in the image of his recently deceased son Tobio, Professor Tenma thought nothing could go wrong now that his beloved child had been "reborn"... that is, until he comes to realize that this invention could never replace his son. Before long, however, the robot is kidnapped and spirited away to a robot circus in America, where he is soon rescued by Dr. Ochanomizu, and taken into his care. Tobio is given the new name Tetsuwan Atom, and transforms into Japan's crime-fighting hero, although his anti-violent pacifist views and overall childlike naivety tend to clash with his battles often.