Gothamites are startled to see a Batman-less Robin taking care of crimes and emergencies on his own, and even more startled to see the Batmobile, Batplane, and Bat-Signal redesigned into a Robinmobile, Robinplane and Robin-signal, respectively. TV newsmen and newspaper writers begin asking the question, "Where is Batman?" Gotham gangchief Pack Purdy and his lieutenant, John Vair, think they know, because "Vair" has told Purdy that he pushed Batman into the sea. Actually, such was Vair's mission, but he failed in it and Batman, disguised as Vair, is now infiltrating Purdy's mob to get the goods on the "Big Job" he is hiring out-of-town mobsters to help with. Said job proves to be an underwater attempt to cut through the hull of the docked ship Natonic and steal five million dollars from its cargo hold. Batman gets word to Robin in time for the police to net the would-be thieves, and joins Robin in nabbing Purdy and his closest aides. Then the Caped Crusader makes his public reappearance, with the operation a total success.

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