THE DARK KNIGHT™ battles his greatest threats yet: cold-hearted Mr. Freeze™, venomous Posion Ivy™ and the unstoppable brute known only as Bane™. Batman™ finds himself at odds with his crimefighting comrade ROBIN™, no longer satisfied with his role as a sidekick. As Mr. Freeze™ threatens to unleash a new ice age upon the citizens of Gotham City™, the Dynamic Duo, now joined by the heroic newcomer Batgirl™, must learn to work as a team before Gotham City is put on ice.