Detective Comics, Vol. 1

An underground nuclear test in New Mexico sends shockwaves as far as Nevada, disrupting warrens occupied by swarms of vampire bats; The panic-stricken animals take to the air and descend atop Hoover Dam and the Las Vegas strip; Outside of a Vegas casino, a man is found dead in an alley; His skin is pale and he has two puncture wounds on his neck; In Gotham City, Bruce Wayne and Alfred monitor televised recordings of the bat phenomena and learn that Doctor Kirk Langstrom and his wife Francine have been called in to analyze the situation; Batman conspires with a show girl named Debbie, former girlfriend of the "vampire" victim, Jim; Debbie agrees to act as bait for the Man-Bat.

Jason Bard is hired to guard, for 24 hours, a valise full of $100,000 - in counterfeit money.