The Nutcracker and the Four Realms is based on Marius Petipa 's The Nutcracker .
It is a retelling of E. T. A. Hoffmann 's short story `` The Nutcracker and the Mouse King '' and Pyotr Ilyich Tchaikovsky 's The Nutcracker , about a young girl who is gifted a locked egg from her deceased mother and sets out in a magical land to retrieve the key .
The Nutcracker and the Four Realms