School’s out for summer, and Penny and her cousin Frankie have big plans to eat lots of butter pecan ice cream, swim at the local pool, and cheer on their favorite baseball team—the Brooklyn Dodgers! But sometimes things don’t go according to plan. Penny’s mom doesn’t want her to swim because she’s afraid Penny will get polio. Frankie is constantly getting into trouble, and Penny feels caught between the two sides of her family. But even if the summer doesn’t exactly start as planned . . . things can work out in the most unexpected ways!