After a young girl, Clara, receives a nutcracker from her enigmatic Uncle Drosselmayer, she finds that her precious present is stolen by thieving rats led by Mauslynx, the double-headed rat queen. To win it back, Clara enters a surreal land through her family`s grandfather clock. One of her stops is the Kingdom of Dolls, where she finds the king grieving over his cursed, eternally-asleep daughter, Princess Mary, a doppelganger for Clara herself. She and Franz, the captain of the guards and Mary`s suitor, infiltrate the army of rats in a desperate attempt to dethrone the despot!