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When the corpse of a man in a diving suit shows up miles from the ocean on the top floor of the "Daily Planet" building, editor Perry White (John Hamilton) is inspired to return to reporting to solve the mystery himself. The closer Perry comes to cracking the case, the more his life is endangered, beginning with a very hot time in a locked steam cabinet. Ultimately, the trail of clues leads from the posh Quincy Athletic Club to a railroad car full of counterfeit money--and can it be that Perry's ace reporter Clark Kent (George Reeves) has been crushed to death under the wheels of the train?