Allie's theatrical hopes are crushed when, instead of being cast as the princess, she is given the role of the evil queen in the fourth-grade class play.

Olivia Grace Clarisse Mignonette Harrison still finds it hard to believe that she's a real live Princess of Genovia. Not only does she get to live in an actual palace with her newly discovered family and two fabulous poodles (who all love her and think that she's anything but ordinary!) but she also gets her very own pony. Of course, things aren't going exactly like she imagined. Her half-sister Mia is very busy learning how to take over the country...