Barbie is Kara - a modern-day princess with a standard life. Kissed by a butterfly which supplies her superpowers and permits her to develop into a Tremendous Sparkle, she is able to save the dominion from evil - had been it not for her jealous cousin who can be kissed by the butterfly and turns into her rival and nemesis. Watch as Tremendous Sparkle and Darkish Sparkle be taught that collectively they'll develop into a terrific workforce for good as soon as they be taught the ability of friendship.