Confident senior Jo begins the new school year by breaking her own cardinal rule: don't get involved in girl drama. but when she sees timid Abby preyed upon by Queen Bee Mandi and her minions, she takes sides in a viciously funny girl-world-war that turns North Shore High School upside down.
FBI agent Malcolm Turner and his 17-year-old son, Trent, go undercover at an all-girls performing arts school after Trent witnesses a murder. Posing as Big Momma and Charmaine, they must find the murderer before he finds them.