The age of Celestia and Luna has long passed. In their stead rules the Führer, a mysterious figure of total control and authority who may or may not even exist. After not a lot of time, the Führer was able to orchestrate the mass and final extermination of those whom the Equestrians deemed unworthy. Zebras, Griffins, the mentally and physically handicapped, those with democratic and republican views, and the like -- they have been sentenced to death by Equestria's new sovereign, and those whom the Führer has deemed acceptable are more than willing to oblige.

Reichsführer-SS Twilight Sparkle has tasked Obersturmbannführer Rarity with running the death camp known as Joyous Countenance. There are a lot of undesirables to kill, and not a lot of time. To assist her are Hauptsturmführers Fluttershy, Applejack, Rainbow Dash, and Pinkie Pie.

The Führer is not a patient being. There is no negotiation, there is no parlay, and there is no question. Either Obersturmbannführer Rarity eliminates these parasites in a quick and efficient manner, or the Führer will find somepony who will.