Feather, the easily muddled Muse of Plants, is confused when he runs beak-first into young Emma. Emma, you see, is a Human and NO HUMANS ARE ALLOWED in Kokonino County, home to Feather and the rest of the New Muses.
Emma wants the Muses to help rescue her teacher, Mrs. Krishnamurti, from the evil (and rather doughy) clutches of her wicked foster father, Mr. Drinkwater. A helpful Muse, Feather would normally love to lend a wing. Unfortunately, Emma has arrived during the Great Pie War, a time when any sudden moves could result in getting a smart pie full in the face. You see, the Great Pie War has escalated from Smart Pies to Smarter Pies to SMARTEST PIES giant, state-of-the-art, satellite-guided pies.
POP! SPLAT! Will the war reach its messy conclusion in time for Feather and the other Muses to help Emma? Or will the trickster Muse Kokopelli sabotage everything?