It's Christmas, and Navy pilot Michael Kavanaugh is home from deployment with a "Dear John" letter in his pocket. In spite of a rather serious case of Bah-Humbug, Mike heads to Christmas, Michigan, to spend the holidays with the York family. But then he meets Merry York, and spending Christmas in Christmas doesn't seem such a bad idea after all. That is, until Mike discovers Merry has a present she's been hiding. She's five months pregnant! As attracted to Merry as he is, Mike isn't prepared to be a father and husband after only seven days. But in a town called Christmas, almost anything can happen.