Set in futuristic Metro City, Astro Boy is about a young robot with incredible powers created by a brilliant scientist in the image of the son he has lost.

• 天马博士的儿子因车祸丧生，悲痛的博士制造了一个机器人来替代，但发现机器人在性质、思想上仍和常人有所差异，博士对机器人的不满导致其随后流落到了马戏团里。