Barbie stars as Blair Willows, a kind-hearted girl who is chosen to attend Princess Charm School: a magical, modern place that teaches dancing, how to have tea parties, and proper princess manners. Blair loves her classes as well as the helpful magical sprites and her new friends, Princesses Hadley and Isla. But when royal teacher Dame Devin discovers that Blair looks a lot like the kingdom's missing princess, she turns Blair's world upside down to stop her from claiming the throne.