My Little Pony Equestria Girls is an animated feature film starring characters resembling the main cast of My Little Pony Friendship is Magic as teenage girls. Princess Twilight Sparkle's crown, which is the element of magic, is stolen by Sunset Shimmer who disappears into a mirror that leads into another world, the human world. Without the crown, all the other Elements of Harmony will have no power to protect Equestria, so Twilight and Spike go through the mirror to chase after the culprit to retrieve her crown. They discover themselves in a new world where Twilight is a teenage girl and Spike is a talking dog, and find friends that resemble their friends from Equestria. Twilight works with her friends to become Princess of the Fall Formal to win her crown back from the human Sunset Shimmer and to 'change the destiny of these two parallel worlds'.
My Little Pony: Friendship is Magic Season 3 Episodes...
"Get your muzzle out of those books and make some friends!" That's what Princess Celestia tells Twilight Sparkle. She may be the smartest unicorn in Equestria, but Twilight Sparkle gets an "incomplete" in friendship. There's more to life than learning magic, after all - so she goes to Ponyville on a mission to make friends. There she meets five special ponies who take her on exciting adventures and teach her the most powerful magic of all... the magic of friendship!
My Little Pony: Friendship is Magic - Season 3, Episode 0 Synopsis and Schedule