Carol really loves Christmas. The decorating and shopping, the Christmas sweaters and music—she wishes it all could be a year-round event. The only downside to the holiday is that she lives in Florida (not exactly the land of snow) and her only family is her Uncle Christopher, who adopted Carol when she was young, after her father's disappearance and mother's death. Her uncle owns a toy company and is super rich—but he's a grinch and a workaholic.
Then, on a magical December trip to NYC, Carol meets her destiny. Santa—the real man with the bag—meets Carol at the top of Rockefeller Center, overlooking the tree. There he explains that Carol is descended from a long line of Defenders of Claus, those who protect and serve Santa. Carol's dad was a Defender. And now Carol has been tapped to fulfill his legacy.
Who would want to hurt Santa? Someone pretty scary and shady, it appears—a masked man who's trying to destroy Christmas! Carol is whisked off to the North Pole on the adventure of a lifetime. Can she help save Santa before it's too late?