Stella the Mouse, Nico the Toad, Delilah the Spider, and Bo the Parakeet are animal best friends who live in a school. They are so excited to see the children arrive on the first day of school in the fall! But they notice that some children are smaller than the rest, and very nervous. Is it possible that these children are brand new to school? The animal friends must do everything they can to make the new children feel at home, and help them to love school as much as the friends do. They want to make sure that everybody is ready for a new year of fun!