The Joker is prepared to deliver his fatal punchline as everything-and the kitchen sink, too-hits the fan for Batman and Robin. Even with Dick Grayson's help, the Dynamic Duo of tomorrow and Bruce Wayne may not stand a chance. Will The Joker turn Terry's brother into the new Jason Todd? Is now a good time for Terry and Bruce to clash? And why are Neo-Gothamites cheering on the Clown Prince? Will anyone survive "The Final Joke"? RATED T