After the multiple divorces and remarriages of her biological parents, 15-year-old Laura Chartoff (Hillary Wolf - "Home Alone" franchise, "Waiting for the Light") has a step-father, three step-siblings, two half-siblings, an ex-stepmother and a potential new stepmother who's pregnant with twins. Tired of the misunderstandings and dreading a family vacation to Hawaii, Laura takes off on a holiday of her own. But as her parents--all of them--come looking for her, they better beware because Big Girls Don't Cry...They Get Even.