Navy SEAL Marcus “Ace” Chambers thought he was ready for anything—until he received a call in the heart of a Russian winter battlefield that his wife, Alex, might be in labor. With Christmas only days away, Ace had planned to be back by her side, but now he’s racing the clock with one mission: get home before his child arrives.

Back in Virginia Beach, a very pregnant Alex Chambers is balancing holiday preparations, her charity foundation, and getting the nursery ready. Brushing off early contractions as just harmless Braxton Hicks, Alex continues to keep busy until her husband is back home by her side.

As Ace and his team navigate every possible roadblock from broken-down helicopters to stranded snowplows, a comedic series of last-minute saves—including a pair of quirky Christmas "elves"—make Ace wonder if a Christmas miracle might be the only way he’ll make it back in time.