Man Made Monster: Big Dan McCormick is the sole survivor of an electric-train crash in which all the other passengers were electrocuted. Intrigued by Dans apparent immunity to electricity, Dr. John Lawrence, distinguished elector-biologist, asks Dan to visit him at his laboratory, where Lawrences assistant, Dr. Paul Rigas, is secretly conducting experiments to prove his theory that human life can be motivated and controlled by electricity. Rigas persuades Dan to submit to tests, where Dan absorbs increasingly powerful charges until he develops an amazing degree of immunity, and becomes a walking hulk of electricity. Rigas does a final test of pouring a tremendous charge into Dans body, and Dan becomes superhuman and his body glows. He is also a robot that is controlled by Rigas. When Lawrence tries to stop the experiment, Rigas orders Dan to kill him. Rigas removes the electricity from Dans body and he becomes a shrunken shell. Despite the efforts of June Meredith, Lawrences niece, and newspaper reporter Mark Adams to help him, Dan is sentenced to die in the electric chair. But in the death-chamber he absorbs three shocks which returns him to superhuman status. He escapes and goes after Rigas, after putting on a rubber suit to encase his electric energy.