It was a simple task: Deliver the package to a family in Eastern Baltimare, be back home by sundown. Derpy had flown the route dozens of times before with ease. But when a powerful, unforeseen storm strikes, the young mailmare is flung headfirst into an ungodly nightmare.

Now injured, lost, and completely alone in a devastated land, the pegasus must find a way to return to her home and her child. Pressed by the unforgiving and hostile terrain, Derpy must find somewhere the will and the skill to make it through and survive. But even that may be impossible...

For she is being hunted.