"When the Joker leaves a clue saying that he will strike at midnight, Commissioner Gordon calls Batman. Midnight is only two hours away. But what mischief is the Joker up to? Can Batman figure it out in time?"--P.  of cover.
Bruce Wayne is at a meeting in Brazil, when he hears that people are disappearing from the local villages, apparently victims of a legendary giant bat--but when Batman investigates he finds Man-Bat and Poison Ivy, and must find a way to stop them, and still come up with a plan to accomplish Ivy's goal of protecting the rainforest from destruction.