Twilight Sparkle receives a letter from Shining Armor telling her to come to the Crystal Empire immediately--and bring her little sister, Twilight Twinkle. But when she gets there she find that the Crystal Heart is missing! Can she bring it back before it's too late?

Rarity finds an old prophecy that means that means Nightmare Moon is coming back on the Summer Sun Celebration. Celestia send her to Ponyville to make friends, something Rarity never cared about. But when she meets 5 mares she may just carry out Celestia's demands, and save the world from Nightmare.