Distributor U.S. Release
All Clara (Mackenzie Foy) wants is a key – a one-of-a-kind key that will unlock a box that holds a priceless gift from her late mother. A golden thread, presented to her at godfather Drosselmeyer’s (Morgan Freeman) annual holiday party, leads her to the coveted key—which promptly disappears into a strange and mysterious parallel world. It’s there that Clara encounters a soldier named Phillip (Jayden Fowora-Knight), a gang of mice and the regents who preside over three Realms: Land of Snowflakes, Land of Flowers and Land of Sweets. Clara and Phillip must brave the ominous Fourth Realm, home to the tyrant Mother Ginger (Helen Mirren), to retrieve Clara’s key and hopefully return harmony to the unstable world.
the official version from disney.com on December 20, 2017
The story follows young Clara, who receives a nutcracker doll from her godfather on Christmas Eve. When the girl goes to check on it later that night, the clock strikes 12 and she finds herself thrust into a fantastical world in which a war rages between gingerbread soldiers and an army of mice.
a modified formulation from variety.com on March 7, 2016