When the nefarious Dr. Caballeron steals a artifact from right under Daring's nose, it's up to her to get it back before it ends up in the wrong hooves and changes the fate of Equestria forever.
The Changelings have lost. Their cities destroyed, their Queen dead. Yet the war is not over. A bomber crew is assigned one final mission to remind the Equestrians of this fact: By using a Nuclear bomb to wipe the city of Las Pegasus off the map.
Chrysalis has traveled to request refuge from Queen Gytha of Greneclyf after being defeated by rebels back home. Gytha knows about her reputation, and though there might be some value in Chrysalis, Gytha must still remain vigilant...
The War ended years ago, but some things? They never really leave you be, war or no war. They're the kinds of things that you take, from the present to the grave.