Synopsis: A jewelry importer named John Sterling is drugged and kidnapped by two criminals, who deliver him to someone called "The Chameleon." An exact double of Sterling later meets diamond merchant Hans Van Spaacken. The fake Sterling shoots and kills Van Spaacken and takes the diamonds, leaving a woman in the shop alive. The woman runs onto the street to tell people on the street what she witnessed, as the fake Sterling walks away smoking a cigarette. When the real Sterling is discovered in his car, he is arrested and sentenced to death. Clark Kent is assigned to report on the story. He arrives at death row to interview Sterling with other reporters. When another reporter offers Sterling a cigarette, Sterling claims that he doesn't smoke. Clark remembers seeing a photograph taken of the fake Sterling smoking a cigarette soon after the murder. Clark transforms into Superman and flies to the Daily Planet to retrieve the photograph, which he then flies to the governor's mansion to prove Sterling's innocence. The governor doesn't consider the photograph to be sufficient evidence and tells Superman to leave him alone so he can watch the baseball game. Superman goes to Sterling's office and finds evidence of the drug that was used to subdue him. After identifying the chemical, he flies to Acme Chemicals to inquire about its sale. The only sale that year was made to K. Meleon. Meanwhile, The Chameleon is in his home, researching his next victim: a railroad yard superintendent named Horace Briggs. Superman's uses K. Meleon's receipt to find The Chameleon's house. His super hearing and x-ray vision allow him to learn about Chameleon's plot. Remembering that the governor is watching the baseball game live, Superman interrupts the game to tell the governor that he will prove Sterling's innocence. He flies the television station's truck and camera Briggs's office and catches the Chameleon in disguise and drugging the real Briggs. Millions watch as Superman chases and apprehends Chameleon and his men. He tricks Chameleon into confessing to the murder and the real Sterling is promptly pardoned by the governor.