In his first screen appearance, the Caped Crusader of Gotham City (belying the lethargic facade of his alter ego Bruce Wayne) battles Dr. Daka, Japanese mastermind of a wartime espionage-sabotage group. Daka has a radium-powered death ray that pulverizes walls, a classic alligator pit to dispose of enemies, and can turn men into electronic zombies who do his bidding and transmit video signals to Daka's lab!