Unpopular band geek Tuba is on her quest to earn a coveted spot on the high school cheerleading team. Concerned that his socially awkward sister is about to become the laughing stock of the entire school, Tuba's football-playing brother recruits his popular girlfriend Andi - a star cheerleader - to teach his sister the secret of whipping up school spirit. Somewhere along the way, the ambitious misfit and her popular mentor start seeing eye to eye, and realize that they have much more in common than they ever could have imagined.