 A power failure prevents Batman and Robin from being electrocuted. Meanwhile, a recording Batman made confirms that cheerleader Susie is one of the Joker s confederates. Robin, in his Dick Grayson identity, attempts to infiltrate the gang. Meanwhile, the Joker s main plot is finally revealed. Members of the high school basketball team receive answers to final exams from the rigged vending machines. The Joker appears, claiming to be a concerned citizen. The team s starters will be suspended as the Joker bets big money on the team s next opponent. Batman, however, has other ideas.