Meet the Sunday Sundae Sisters! Allie, Sierra, and Tamiko have been best friends since kindergarten. Now Allie's parents are divorced and Allie has moved one town away. She can still see her friends but she no longer goes to the same middle school. So that means new teachers, new classrooms, and new students to deal with--all without her BFFs for support. But when Allie's mom decides to fulfill her lifelong dream and open up an ice cream shop, Allie has an idea. Maybe she and her friends can work in the shop every Sunday! It's a way for them to stay in touch every week and have fun--that is, of course, until they actually start working. The girls soon discover that working in an ice cream shop is more than just scooping cones and adding toppings. It's serious work and Allie feels the pressure of having to "be the boss" around her friends. Can the girls work together every week and still remain BFFs? They can--especially when they settle their differences over an ice cream cone.