Episode Title:The Pernicious Parasite.Episode Description:While breaking into a science lab, a petty criminal named I. C. Harris is exposed to a radioactive isotope and achieves power to drain physical strength from other men. With his new power, he aims to become a "Superman of Crime". But when he discovers the real Superman, Harris's unstoppable greed for physical power proves fatal (though the series pre-dated Crisis On Infinite Earths, Harris is not to be confused with the Parasite of the Pre-Crisis DC Comics, whose origin story was essentially the same).