Batman

In order to lure Batman and Robin to Police Headquarters, The Bookworm, a notorious master of stolen book plots, stages a phony assassination attempt on Commissioner Gordon during the dedication ceremony of the new Amergio Bridge. Once The Dynamic Duo enters Police HQ, Bookworm has his moll, Lydia Limpet, planting a book bomb in The Batmobile. After discovering that Gordon is not dead, Batman is alerted by The Batmobile Bomb Detector of an impending explosion and immediately pushes The Batmobile's Radio-controlled Ejector Button. the bomb is ejected and it explodes in midair before it does any damage!

The Duo quickly return to their unharmed Batmobile to discover a literary clue in the form of the book bomb's cover. They race back to The Batcave, where they deduce from the book cover that Bookworm is planning to blow up the new bridge. The blow-up is a photographic ruse: Bookworm projects a large image of the bridge onto a warehouse wall!

Batman and Robin trace the projection back to a giant projector mounted on top of a nearby bookmobile, where they get into a fracas with Bookworm's henchmen. The crooks escape along with their craven leader, but they leave the lovely Miss Limpet bound and gagged inside the bookmobile. The Dynamic Duo wisely suspect a Bookworm plot and they knock her out with Batgas and spirit her away back to The Batcave, where they employ the use of The Hypermetric Lie-Detector in hopes of divining The Bookworm's plot. They learn what they can from Lydia and they return her to the bookmobile where Batman activates a Bat-trap for Bookworm. Leaving The Boy Wonder behind to guard her, Batman pretends to speed off on the trail of Lydia's fatally false clues. In his absence, Lydia uses a trick book to gas Robin to sleep and she contacts Bookworm, who along with his henchmen Printer's Devil, Typesetter and Pressman, transfer Robin to The Wayne Memorial Clock Tower which was erected in memory of Dr. Thomas Wayne, Bruce's late father where The Boy Wonder is strapped to the clapper of the giant bell of Big Benjamin. When the clock strikes at midnight, the bell will begin to toll the hour. The Bookworm departs, leaving Robin to be "rung" out!