Clara is searching for the special key to unlock a box from her late mother. Inside that box is a priceless item that her mother left for her. During her godfather's yearly holiday party, Clara almost gets the key but it disappears. She embarks on a quest into a mysterious world which has four different realms: a snowflakes realm, flowers realm, sweets realm, and the challenging realm where the key is. As she undertakes her journey she meets different characters including Phillip who is a soldier and a gang of mice. Will Clara be able to gain the key to receive her late mother's special gift?

Originally released as a motion picture in 2018. A reimagining of the E. T. A. Hoffmann story "The Nutcracker and the Mouse King" and the ballet by Pyotr Ilyich Tchaikovsky.