It is Xmas again, and everyone is locking down for the arrival of Robot Santa. The Professor sends the crew to deliver children's letters directly to Santa at his fortress on Neptune. After reading some of the letters, begging Santa not to wreak havoc on the writers, Fry decides to bring Christmas back to the way it was in the past. They land at Jolly Junction, Neptune, and enlist the aid of a pair of Neptunians in sneaking into the fortress.