Nebraska City, summer of 1991—Inseparable best friends A.J. and Moose seize the opportunity to run the local pool's rundown snack shack after their plan to gamble on dog races and sell home-brewed beer goes down the drain. Dreaming of striking it rich, things take an unexpected turn when they meet Brooke, an effortlessly cool lifeguard who puts their big summer plans and their friendship at risk.