Before her fall, Luna lived entire lifetimes as a mortal pony. She now wishes to do so again, and elects to spend some time with Twilight Sparkle and her friends. She never expected to fall madly in love.
It's the annual Parents' Day Festival, and Applejack is eager to meet all of her best friends' parents! However, when bad family histories threaten to ruin the occasion, she takes it upon herself the save the holiday for everypony.
The last thing Applejack remembers, she was working in the fields. Suddenly, she finds herself transported ten years into the future, into an Equestria overrun by fearsome enemies. Now it's up to her and a small band of survivors to fight back!
A strange artifact arrives at Twilight's library and turns her into a dragon. From there, everypony she touches suffers a similar fate and the race is on to find a cure before all of Equestria falls prey!
Applejack is off to the far corners of the galaxy to fight for Ponydom. If she can survive the horrors of war, will she return as the same pony that left?