Heir to the Wayne family fortune, Bruce Wayne lives by day as a seemingly lavish playboy millionaire socialite, but by night assumes the role of his crime-fighting alter-ego: the caped crusader known as The Batman. Throughout the show, Batman receives help from sidekicks Dick Grayson/Robin and Barbara Gordon/Batgirl, as well as Police Commissioner James Gordon, in protecting the streets of Gotham City from a large rogue's gallery of criminals, lunatics, and nemeses.