The Joker has gathered a group of criminals and his very own sidekick, a midget clown named Gaggy to commit a series of heists stealing an original or first edition items of antiquated or historical value. As usual the clown prince of crimes thefts bring the attention of Batman and Robin, who after a few bungled attempts at stopping Joker from stealing original models of famous inventions, and an original typewriter, they manage to stop the Joker and his gang from stealing the original Gotham City Hall, and turn the crooks over to the police.