Moving to New Mexico is quite a shock for Belle and her owner, Darcy Simmons; so very different from their home in Illinois. But Darcy and Belle quickly make new friends in their neighbors Susan and her Airedale Terrier, Jazzy. Life would be great in their new home, if it wasn't for the dog-hating girl across the way, Emily Robinson. If that wasn't bad enough for Belle, there's no agility club in town and Darcy starts training her and Buster to become therapy dogs, whatever that is. Learning to be a therapy dog for Belle is so different than becoming a great agility dog, especially when she doesn't understand the importance. Buster seems to be a natural at it, and that irritates Belle even more. When Emily falsely accuses Belle of biting her, Belle's life takes a turn for the worse. Can Belle overcome the challenges of being a good therapy dog, while handling the meanness she and Darcy face from Emily?