Leigh (Kristen Bell) is almost thirty and living a perfect life in New York. But when her career and love life both come crashing down, she runs away to her suburban hometown and falls right back into teenage life and behavior. She moves into her old room with her parents, hangs around with friends who never left town and reclaims her high school job as a condo-complex lifeguard. But as Leigh enjoys shirking off adult life and responsibilities and enters into a forbidden affair, she starts a chain reaction that affects those closest to her.