New York has always been a dangerous city, even as far back as the 1930s. But zombie-esque creatures and ape-like men are big news even for the Big Apple! When a gorgeous dame narrowly escapes their rotting clutches, she sends the bronze-skinned superman Doc Savage on the investigation of his lifetime! Who knows where the trail of corpses will lead? Who knows what evil lurks behind this rash of oddness? Savage isn't sure, but all fingers point to... The Shadow!