When Celestia and Luna decide to retire and hand off the ruling of Equestria to Twilight and her friends, it sends Twilight into a tailspin of self-doubt. Meanwhile, the ancient villain Grogar bands together a legion of nefarious characters to conquer all of Equestria, but a restored King Sombra has conquering ideas of his own.
"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!