The Dark Knight of Gotham City confronts a dastardly duo: Twoface and the Riddler. Formerly District Attorney Harvey Dent, twoface believes Batman caused the courtroom accident which left him disfigured on one side. And Edward Nygma, former and computer-genius employee of millionaire Bruce Wayne, has gone going to find the philanthropist. While the Riddler. His family murdered by twoface, former circus acrobat Dick Grayson, becomes Wayne's defender and Batman's new partner Robin.