When Pa Peachey lands a new job, it means a new house in a new part of town for the Peachey family. Everyone's excited about the move except Betty. She doens't want to live in a new house. She doesn't wants to go to a new school. And she definitely doesn't want to be the new girl. Nobody seems to care how sad Betty feels except McTavish, the ever-loyal, ever-observant rescue dog. But can McTavish really save the day this time?