Dying of brain cancer, a dangerous international spy is determined to give up his high stakes life to finally build a closer relationship with his estranged wife and daughter, whom he's previously kept at arm's length to keep out of danger; but first, he must complete one last mission - even if it means juggling the two toughest assignments yet: hunt down the world's most ruthless terrorist and look after his teenage daughter for the first time in ten years while his wife is out of town.

Mr. Freeze is living in the arctic with his cryogenically-frozen wife. When a submarine destroys her containment capsule, he has to find someone to "donate" a new heart for her. His search turns up one donor with the right blood type: Barbara (Batgirl) Gordon. Her kidnapping sends Batman and Robin on a hurried chase to free her in time.