The Cinderella Mouse Ballet is showing in the Theatre Royal, directed by Ivor Operatski, a rather strict director. Priscilla Pinkpaw gets the main part but not Angelina because she cannot sing very well. Distraught that her rival is Cinderella Mouse while she is the Wicked Stepmouse, Angelina tries to prove to Mr. Operatski that she can do it, but without success, so Angelina storms off in a fit of temper. Meanwhile, Henry is unable to withstand Mr. Operatski's angry demands./A sledging accident results in Miss Lilly's ankle broken. Ashamed of her selfishness, Angelina manages to get the show back on track, with Ivor Operatski having a change of heart. Angelina gives it her best shot as the Wicked Stepmouse, resulting in a spectacular performance.
