When Pinkie Pie tries to invite all her friends to a second party in as many days, everyone seems to be avoiding her. Unused to having her parties ignored, Pinkie Pie tries to find out why her friends are acting strange.
"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!