"The Hacienda de la Sierra is Emma's (Duff) favorite place to spend the holiday season and her boyfriend, Liam (O'Connell), has been secretly planning to propose to her there, surrounded by both their families. Emma is delighted when she arrives to find the whole family bunch there. Of course, no holiday gathering is complete without drama, and soon the families are bickering over every detail! The added stress from trying to blend the two families eventually takes a toll on Emma and Liam, who start questioning their own relationship. Now just days before Christmas, the two families realize that they're going to have to work together in order to reunite Emma and Liam!"