When Kinney, Oceana, and Sammie stumble upon a mysterious bag with magical tiaras inside, their lives change forever. They transform from regular girls into Super Duper Princess Heroes! Their new powers, however, come with strings attached. To keep the magic going, the girls need to help others, to work together as a team, and to always be humble about their abilities. Can these awesome girls rise to the challenge and help save the world? Can they prove that princesses are about courage and independence instead of just fancy dresses and glittering jewelry? You better believe they can!