When Becca's dog runs away on Christmas Eve, she must team up with her ex-boyfriend to find him. As our pup leads the exes on an all-day-and-night search through their North Carolina hometown, they revisit people, places and things that remind them of the Christmas pasts they spent together. By Christmas morning, they've found the dog and have rediscovered their love for each other. Vanessa Lachey and Christopher Russell star.