A longtime menace to Gotham City, Edward Nigma, a.k.a. The Riddler, gets his devious kicks by challenging Batman to puzzling mind games. But now the game has changed - arch-villain Bane has injected The Riddler with the drug Venom, giving him super-strength and a mean new edge. The fate of Gotham City's population now rests in Batman's ability to solve The Riddler's latest puzzle, while at the same time battling this newly-created monster who's armed with a weapon that fires question mark ammo. It's an all-out battle of brains and brawn!