Sunset Shimmer, personal student of Princess Celestia, counts down the days until she is finally made princess. Only thing standing in her way to princesshood? A certain pony called Twilight Sparkle.
Starlight Glimmer has worked hard to bring about her vision of perfection. Molding ponies to fit where they were supposed to and making them happier for it. Pity no one told her that when they made the Great and Powerful Trixie, they broke the mold.
In the near future mankind was driven into a biochemical war against an unidentifiable contagion created by an asteroid that struck the planet. Without no cure or any form of escape, mankind buried themselves and awaited their extinction.