In Ponyville, Pinkie Pie is throwing a party with a slew of Equestrian pals. Among those in attendance are her buddies Rarity, Fluttershy, Twiight Sparkle, Rainbow Dash and Applejack. Suddenly, an apocalypse of biblical proportions erupts, causing untold carnage among Equestria’s elite and trapping Pinkie’s party in her home. As the world they knew disintegrates outside, cabin fever and dwindling supplies threaten to tear the six friends apart.