Andie (McAllister) is undateable — thanks to her older brother Alec (Paul), the most popular guy in high school, who makes sure no guy comes near her. Fortunately, Andie has her three best friends to help her shake the little sister stigma; Dakota (Thompson), Courtney (Falcone), & Mae (Sherer). These four very different personalities help each other navigate the hormone-induced, angst-filled sea that is high school summer vacation.