More animated adventures featuring Barbie. This time around, Barbie (voiced by Kelly Sheridan) and her sisters Chelsea (Ashlyn Drummond), Stacie (Claire Corlett) and Skipper (Kazumi Evans) jet off to Switzerland to spend the summer at their aunt's riding school nestling in the Alps. But when the future of the school is threatened, all four girls realise that they need to pull together and ride at the inter-academy equestrian tournament to help save the day.