The story begins with a scientist creating a device shaped like a man that can be remote-controlled by a machine. The mechanical man possesses super-human speed and strength. The scientist is killed however by a gang of criminals, led by a woman named Mado, who wish to obtain his secret of building a mechanical man. The criminals are captured before they are able to get them, and are brought to trial and condemned. Mado manages to escape and kidnaps the scientist's niece, forcing her to give her the blueprints which she uses to build a mechanical man.