The Caped Crusaders have the task of saving four escaped felons from the radiation they have become contaminated with before they perish or infect others.; While chasing down a wanted criminal, Batman is struck by lightning and falls into the harbor. When he rises out of the water, he discovers that he cannot breathe air and has literally become a human fish.; Batman's testimony in a court case seemingly allows a guilty man to go free, but he uncovers evidence later that proves another man was a killer!