Trying to skip out on Christmas, Ali turns to work during the holidays. Upon meeting a kind stranger at a diner who encourages her to believe in the magic of the holidays, Ali admits that she would redo last Christmas if she could. The next morning, she wakes to realize that her second chance has come true-but changing history is no easy task, and Ali has her hands full trying to navigate every decision to make sure that this time around she ends up with the love of her life.