Brenda Black prides herself on her logical and orderly mind. She studies anatomy books to get a head start on medical school and idolizes Leonardo da Vinci. Things go haywire, though, when her spoiled cousin Tiffany comes to visit. At first Brenda tries to ignore Tiffany's bragging. But when Tiffany implies that Brenda is not cultured enough to know who Miss Camilla Freeman is -- Miss Camilla Freeman, the very famous prima ballerina -- Brenda snaps. She tells Tiffany that she happens to own an autographed pair of Miss Camilla Freeman's toeshoes. So of course, Tiffany wants to see them. The only problem? The shoes belong to Ms. Debbé, the headmistress of the Nutcracker School of Ballet! Brenda's anatomy books won't get her out of this mess -- for that, she'll need the help of her Sugar Plum Sisters!