Chuck and Kate's used to be real, oh-so-real. But after she broke his heart four months ago, leaving him, it became all just pretense for the sake of their entwined families. With parents who are best friends and business partners, it's not easy for Chuck and Kate to announce they've split up. But with the holidays looming over them, they can no longer keep pretending. Chuck and Kate head home for Christmas, determined to tell the truth-and end up accidentally engaged instead. The more they try to pull apart, the more the Universe seems to push them back together, shortening the road to the altar. And when just-for-show kisses stir up forgotten feelings, things get even more complicated.