Six years earlier, Homer and Marge go to the Christmas party at the Springfield Nuclear Power Plant.
Although Homer promises not to drink, Lenny and Carl spike his soda, making him drunk enough to mock Mr. Burns.
Marge, appalled by Homer's behavior, refuses to let him inside the house for Christmas, leaving him to wander town.
After Homer ruins grace and is a bad influence on Rod, Maude kicks him out of their house.
In the tag, Bart scares Rod and Todd with Grampa's missing dentures while Homer and Marge spend time in the secret room with Moe surreptitiously watching.
[2] Production took place entirely during the COVID-19 pandemic, and a line in the episode alludes to it when Homer refers to the "horrible present."
The producers did not want the pandemic to appear in the world of the Simpsons because they felt the masking and distancing would look odd when viewers watch the episode in the future.
[5] The films Frozen and The Ice Storm are playing as a double feature at the movie theater.