So Fluttershy, Pinkie Pie, Rainbow Dash, Rarity, Applejack, and Sunset Shimmer must work together to win the cup. But they find out that the other Twilight Sparkle is on the opposing team.

During the one-hour season premiere, Princess Twilight Sparkle and the rest of ... In her exhaustive new book My Little Pony: The Art of Equestria, out Oct. 13, author Mary Jane Begin traces ...