A young girl is transported into a magical world of gingerbread soldiers and an army of mice. In Disney’s magical take on the classic The Nutcracker, Clara wants a one-of-a-kind key that will unlock a box holding a priceless gift. A golden thread presented at her godfather’s holiday party leads her to the coveted key—which promptly disappears into a strange and mysterious parallel world. There Clara encounters a soldier, a gang of mice and the regents of three magical Realms. But she must brave the ominous Fourth Realm, home to the tyrant Mother Ginger, to retrieve her key and return harmony to the unstable world.