All the great leaders had to start somewhere. And Theresa ("Resa" for short) is starting with the lemonade stand competition her teacher assigned to the class-but making it a success is going to be a lot harder than Resa thinks. The prize: line-skipping tickets to Adventure Central. The competition: Val, Resa's middle school nemesis. And the biggest obstacle to success: Resa's own teammates. Harriet is the class clown, Amelia is the new girl who thinks she knows best, and Didi is Resa's steadfast friend-who doesn't know the first thing about making or selling lemonade. The four of them quickly realize that the recipe for success is tough to perfect-but listening to each other is the first step. And making new friends might be the most important one...