A magical train ride on Christmas Eve takes a boy to the North Pole to receive a special gift from Santa Claus.

With the gang spread across the country (and beyond) at college, Spencer is back to feeling out of place, even when he returns home over winter break. Desperate to escape his grandfather who is sharing his room, and to feel confident again, he attempts to fix the broken Jumanji video game, giving his friends no choice but to level up and return to rescue him.