Emma loves the family's Irish nanny. Annie's fun. She likes pets. She keeps secrets. She wears wonderful clothes. And she likes to play. Emma's sisters and brothers are also crazy about her. So when Annie announces that she's returning to Ireland for three weeks to see her sisters, the kids panic. What if Annie doesn't come back? What if their parents hire a new nanny, someone who doesn't like ferrets, or even worse, kids? Annie introduces them to a substitute nanny named Mrs. Potts. But the kids don't take to her. She's just not Annie. What a dilemma! Then Emma has a brainstorm . . . and the fun really begins!