Flora, Ruby, Olivia, and Nikki are sad that the Willets have moved out of the Row Houses, but they're excited when they hear the new neighbors will have kids nearly their age. One of them, Willow, seems like a natural fit for their group of friends. The only problem? Willow doesn't seem eager to be a part of life on Main Street. Evenutally, Flora discovers that Willow has a secret — a secret tied to the often erratic behavior of her mother. What's a good neighbor — and a new friend — to do?