When Justin Flinchley loses his job the day after Thanksgiving, he thinks his life is over. Without money to pay rent, he'll be celebrating Christmas in the streets unless he can manage to find a new job by the end of the week. But in the middle of his frantic job search, he comes across an ad that sounds too good to be true:

"Air courier desperately needed. No experience necessary, we will train you. Must be willing to relocate."

The moment Justin applies, he is whisked away to the North Pole, where he's given a shiny new pair of antlers and is told that he's the latest addition to Santa's team of magic, shapeshifting reindeer! An ancient evil is plotting to shroud the world in darkness, and only Santa's gifts can keep the light of hope in children's hearts shining bright enough to push it back. Justin has less than a month to learn how to fly before Santa's yearly trip around the world. The fate of Christmas--and the entire world--depends on him.

There's only one problem: he's afraid of heights.