Trixie's sister, Belinda, is a ballerina. Trixie, however, is not. Trixie's anti-ballet tendencies become clear in the dancewear she picks out at the shop, the dismay her unconventional technique elicits from her stern teacher, Madame Mina, the way she does her hair, eats an ice-cream, and the part she is given in the end-of-term show - a rock! But Trixie does have talents, even if they don't quite fit the rules of a ballet class. She's full of free-spirited energy and knows her own mind, and the class pianist, Mr Tiempo, can see that Trixie would rather be doing a toe-tap than a twirl. All ends happily when the contents of a mysterious box - left backstage for Trixie after the end-of-term show - allow her to step out and shine . as a tap dancer!.