Rudolph Anders

Identical twins, the Von Klaven brothers, steal a million dollar core of radium from the U.S. Medical Corps in Germany and transport it to the United States during the Superman adventure, "Double Trouble." When one brother is murdered and the radium is stolen, Clark Kent as Superman cracks open the case and brings the remaining brother to justice.

Yuma brings old farmer Frank Gottwald a document proving he's right in his land dispute with Dan Hauser. But since Gottwald lacks money for an appeal, and despite his bad heart, he agrees to Hauser's deal to walk his entire land in the hot sun, which could prove fatal.

Who is "The Lady In Black?" That's the mystery that engages Clark Kent, Jimmy Olsen, Lois Lane and, of course, Superman. George Reeves, Jack Larson and Noel Neill are in leading roles of the half-hour, Hollywood-filmed TV drama which finds Jimmy baffled by a clever gang of art thieves.