Toymaker Cosmo Krank seeks revenge against Bruce Wayne after the billionaire successfully leads a campaign to remove his unsafe toys from store shelves.
The Digitally Advanced Villain Emulator, or D.A.V.E., is an artificially intelligent computer program made up of the combined psychological profiles of the most diabolical criminals committed to Arkham Asylum.
Penguin assembles an all-star team of Gotham's most dangerous villains to take down Batman. Meanwhile, Batgirl and Robin try to work together for the first time.
Clayface turns himself over to the police, promising to give up his criminal past. And when a new villain arrives he sees the perfect opportunity to redeem himself.