Ever since Twilight and Pinkie Pie's wedding, they have talked about having a baby. But After years of being happily married without any foals, they had forgotten about their plans. Until One day when Pinkie gets a very peculiar stomachache.

Where ponies must work to protect their world against the changelings, horrible creatures that eat the cutie marks of innocent ponies. its up to the academy of brave ponies to fight against them. partners, a mister and a weapon.