In the distant year 2003, Japan is a technological utopia where robots are ubiquitous. One such robot, Tobio, was constructed by the brilliant Dr. Tenma to replace his deceased son. However, when it soon becomes clear that Tobio is an imperfect replica of his lost child, Dr. Tenma casts him out. He is saved from the scrap heap by the benevolent Professor Ochanomizu, a crusader for robot civil rights. Now, the little robot, renamed Astro Boy, is tasked with defending Japan and the world from all manner of sinister threats. Utilizing his seven super-abilities and 100,000 horsepower of strength to battle evil, Astro hopes to demonstrate to the world the good that all robots are capable of.