"It's a beautiful Saturday afternoon. Angelina's dad announces it's too nice out to stay indoors, so they take a family trip to the park! At first, Angelina and her sister, Polly, have a great time riding the carousel, flying a kite, and playing on the swings. But then Polly starts to feel sad that her big sister does everything better. If Angelina can convince her that someday soon she'll be able to do everything Angelina does, this can still be the best family fun day ever!"--