Nopony had seen it coming. Even now, they were all blissfully unaware of the danger that lurked on the horizon. All except Twilight Sparkle and co-rulers of Equestria, Princess Celestia and Princess Luna. After crunching the numbers, they discovered that Equestria had reached its maximum sustainable capacity many years ago. But with the evergrowing population, the rulers of Equestria find themselves racing against the clock to remedy the situation before it's too late.