Mr. Freeze is quietly living out his life in the freezing Antartic tundra with an Inuit indian boy and Nora, Freeze's cryogenically-suspended wife, when a U.S. Navy submarine unexpectedly surfaces. The ship rips through Freeze's cavern home, sending multi-ton blocks of ice flying everywhere. In the process, the cryo-chamber Freeze's wife is suspended in becomes damaged -- forcing Freeze to return to Gotham City in seek of the technology and resources necessary to save her. It's a desperate mission for Freeze, one that immediately pits him against Batman and Robin.