Curtis Newton, aka Captain Future, is an orphan. His parents died in their artificial satellite while he was an infant. His father was a scientist, who has abandoned Earth for the satellite to dedicate his life to science along with his ageing friend the genius Dr. Simon Wright. Wright senses his death, and decides to implant his brain in a mechanical container. They both manufactured a superior robot and an android. Captain Future dedicates his life to fight evil along with his three men, the brain, android, and robot.

Source: ANN

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Side story: Captain Future: Karei Naru Taiyoukei Race