Kaley has been an aupair with the same family for a number of years. She is on her way home for Christmas but before then she is with the children while the parents fly to New York overnight for a company party. Meanwhile, Ethan, the brother of the family's father, shows up to celebrate Christmas with them. However, the parents get snowed in New York and Kayla realizes she can't leave the kids with Ethan and cancels her trip home to take care of the kids until the parents can get home. While taking care of the children, she also tries to get Ethan to stop working all the time and spend some time with his nephews.
Well, the movie is good, even if you wonder about the prolonged snowstorm over New York that blocks all flights and other transport for many, many days.