Marty McGuire would rather spend recess catching frogs in the pond than playing dress-up with the other girls in third grade. So when her teacher casts Marty as the princess in the class play, Marty's absolutely, positively sure that there's been a huge mistake. But after a special lesson in the art of improvisation, Marty comes up with her own plan to improve the play: Why use stuffed-animal frog onstage when a live one would be so much better? In the end, Marty's one-of-a-kind performance makes for an unforgettable show. Maybe Marty can live happily ever after, after all!