Adventure awaits and Mup is ready for it. But with one bad wish, a creeping disaster unfolds and Mup finds herself trapped in the future, face-to-face with the one person she never wanted to become: her teenage self. With the world's plants dying all around them, the girls must overcome their differences and work together to uncover the secret to the planet's survival - which may have something to do with a forgotten mystery of the earth's prehistoric past.