When Santa Claus, also known as Scott Calvin, prepares to enjoy his first year as a dad and husband at the North Pole, everything seems to be going smoothly. However, the pressure of coordinating the Christmas festivities and the impending arrival of his baby complicates the situation. To make matters worse, his mother-in-law, Mrs. Whitfield, is about to pay a surprise visit that threatens to ruin the magic of Christmas.
Meanwhile, Jack Frost, the mischievous winter character, is scheming to take over the festivities and turn the North Pole into his own Christmas spotlight. With his charm and icy demeanor, he manages to infiltrate Scott's life and offers him a trap that could unravel his role as Santa. If Scott doesn't act quickly, he risks being replaced and losing his legacy.
In a desperate attempt to protect his family and Christmas, Scott must confront Jack Frost in a battle of wits and cunning. The adventure takes us through time shenanigans and hilarious situations as Scott tries to reverse the chaos that has ensued. With some help from his elf friends and family, he will learn valuable lessons about the true essence of Christmas and what it means to be a good father and husband. Time is running out, and Christmas happiness is at stake!