Astro Boy (voiced by Freddie Highmore), a young robot created by Dr. Tenma (Nicolas Cage), embarks on a dangerous odyssey, navigating unknown territory in search of purpose before returning home to save his loved ones. Metro City is desperately in need of a hero who has extraordinary superpowers like x-ray vision, remarkable speed and the ability to fly in this sci-fi anime based on Osamu Tezuka's manga.