Barbie and her sisters are their protagonists; The girls decide to go on vacation with their adorable puppies, after a long trip, they come to one of the most beautiful and Paradise islands. But, these holidays has a purpose Chelsea will participate in a dance competition that requires all of their concentration during rehearsals.
While she is distressed by having an impeccable performance to be the winner, her sisters ask her to calm down and Barbie encourages her to “see a big surprise”. The girls decide to go with their dogs to tour the island and they are going to make it a very quick trip, just to get distracted a little. Everything seems to be going very well, but something changes. When arriving at the Festival of horse, the girls are excited by how beautiful it is, all the horses dance and move with peculiar style. While the girls decide to go to see the show, the puppies go out a little to play and are lost from the sight of their owners.