In the distant town of Hay Bale resides Sparkhorn and Skyrocket, a sharp-minded unicorn and adventurous pegasus set out to prove themselves ready to become Wardens. The Wardens have watched over Hay Bale for generations, standing guard over the common ponyfolk while still keeping their everyday lives.

Why the need for the Wardens? Hay Bale is, as the parasprite flies, ten minutes from the territory of the changelings. And after the debacle in Canterlot, Queen Chrysalis is far from pleased…