Clara feels stifled by the life that's been planned out for her, and clings to her only hope that something more might be possible: a mysterious book given to her by her Uncle Drosselmeyer, that recounts the tales of the magnificent warrior woman known as the Red Prince. Decades ago, Drosselmeyer trapped the Red Prince in the form of a doll to save her from the Rats. When the magic of Clara's selfless admiration restores her to human form, she and Clara must find a way to stand against the Rats once and for all if they hope to enjoy the life they've always longed for...