When a rash of counterfeit money is discovered emanating from Gotham City Bank, The Caped Crusader and The Boy Wonder are summoned to investigate. At Police HQ, they discover that The Joker has planted a tiny loudspeaker on Commissioner Gordon's cufflinks which was the source of a constant broadcast of hideous laughter that seemed to echo in Gordon's ears and had been driving him and Chief O'Hara up the wall. Believing The Harlequin Of Homicidal Humor is behind the phony tender at the bank, The Dynamic Duo rush to the scene. There at the bank, it is discovered that the bank's chief teller has been replaced by Mr. Glee, a Joker-controlled robot. The Batman and Robin disables the robot and takes him to The Batcave, and Joker and his moll, Josie Miller, is able to divine the Batcave's location with the robot's built-in homing device, and they give pursuit in The Jokemobile! However, Batman has anticipated this and uses a tracking signal Batdeflector to lead The Joker to a fake Batcave!

Back in The Batcave, The Caped Crusader traces The Clown Prince Of Crime to his new hideout: at the offices of Penthouse Comic-Book Publishers. In order to prove Joker is printing illegal tender, Robin attempts a break-in, while Bruce Wayne pretends to be a broken man from embezzling some of the bank's money, and his only way out is to ingratiate himself with Joker. If The Joker would agree to print some of his funny money, Bruce would return the favor by making him Vice President of The Gotham National Bank. Joker quickly, and gleefully, agrees, but just as he is about to print the corrupt cash, The Boy Wonder appears and does battle with Boff and Yock, two of Joker's other robots. Bruce joins in briefly, but Robin is nevertheless quickly subdued and winds up strapped to a giant printing press Joker uses to manufacture comic books (even more treacherous irony!)! And, just to make sure that Bruce doesn't try to pull a fast one, he orders Boff and Yock to force him to throw the lever that activates the press and turn Robin into a human-sized comic book...