Tetsuwan Atom: Kagayakeru Hoshi - Anata wa Aoku, Utsukushii...

A boy is chased by a robot through some ruins. There, he finds an Earth ruled by a computer called "Gaia," who has lost patience with humans who repeatedly cause war and environmental destruction. While desperately trying to escape, the boy discovers Atom, which had been put on display 200 years ago after it had finished its role.