The episode places the citizens of Springfield in a medieval fantasy kingdom called Springfieldia, where the Simpson family are serfs known as the Serfsons.

To date, this episode marks the final time that Apu is voiced by series cast member Hank Azaria and is the last dub of Homer's French-Canadian voice actor Hubert Gagnon following health issues, resulting in his death on June 7, 2020.

At the Springfieldia Human Power Plant, Homer attempts, unsuccessfully, to ask Lord Montgomery for the money.

Seeing her father's plight, Lisa solves the problem by magically converting lead into gold.

At home, Marge gives the amulet to Jacqueline, who refuses at first, recognizing the futility of life, though she decides to wear it.

Jacqueline decides to remove the amulet, turning her into a human composed of ice, and sacrifice herself to defeat the dragon in which she succeeds.

Executive producer Matt Selman described the episode as a love letter to the fantasy genre portrayed in different forms of media.

The show has done a gimmick episode as a season premiere more than once, and they’re perhaps intended to snag viewers with a few unambitious pop culture references.