In the frenzy before Christmas, two unmarried parents -- busy working mom Abby (Lachey) along with also her son, and frustrated attorney Ryan (Zub) along with his daughter -- accidentally mix their toys up at a crowded department store. Consequently, both of the Christmases may actually get destroyed. Although eachother can not stand, the way is to simply help each aligning their vacation plans -- perhaps not understanding they are falling for eachother in the procedure.