Mr. Freeze and The Penguin are out for revenge. Can Batman, Robin and loyal butler Alfred stop them from bringing an early winter to the Dark Knight's hidden lair' Batman's secret base includes vehicles for Batman and Robin, a Penguin sub and henchmen, a two-level control center, a net and rocket launcher, a secret entrance and prison cell, a costume transformation chamber, a dock for the Batboat and repair bay for the Batmobile, and much, much more. 1,075 LEGO building pieces.