His vanity offended when the Gotham Museum rejects his artwork, the Riddler seeks revenge by blowing up the building. Batman and Robin work through his riddles to try and stop him.
The Joker robs the Gotham City Treasury and then uses the money to setup city officials he accuses of corruption. Batman and Robin try to sort out the truth of the madman's plans.
The Joker, The Penguin, and The Riddler have a contest to see which one of them can pull off the greatest crime and take over the criminal empire in Gotham.