When the anarchistic princess of her own life, Princess Itty Bitty is told that her little brother, who still lives in her mother's womb, is about to move into her room, she's had enough. Drawing on the wisdom of her quirky neighbor, Auntie Jenssen, Itty Bitty devises a plan and conjures the bossy grown-ups to Hilldiggle with the help of her magical dog, Sausage.