The Caldwell family returns in the third installment of ABC Familys Au Pair movie series. The Caldwell's need a family vacation after a year of great changes. Katie is done with her first year of college, Alex just graduated from high school, Oliver has been battling his CFO and board members over a new business venture and baby Sarah barely knows anyone except her mom, Jenny. With everyone coming home and no school restrictions, Oliver surprises the family with a vacation to Puerto Rico. But as they reach paradise it's clear that they all have different agendas for the vacation. With everyone off on their own adventures, Jenny is left on a family vacation with no family.