Stuart Little loves being part of the Little family. He plays peewee soccer with his big brother, George, and now he even has a new little sister, Martha! So when a sweet, lonely bird named Margalo falls into his life, Stuart invites her into his home.
But there's more to Margalo than meets the eye -- she has a lot to learn about being friends. Luckily, the little mouse with the big heart is there to teach her!