AllMovie

Superman (George Reeves) rescues Corky, a sweet, playful dog, from the well into which he's fallen, and returns the dog to his owner, Joyce (Dona Drake). He later discovers that the dog has bonded with him and is seeking him out -- the problem is that Corky recognizes him in his Clark Kent guise and is just as gregarious in greeting him at those times, in his office at the Daily Planet. Joyce's husband Hank (Ben Welden), a small-time hood with big-time ambition, figures this out, and plans to use the dog to uncover Superman's secret identity, and blackmail him into giving his bookmaking operation protection.