Princess Twilight Sparkle misses her doll Mr. Smarty Pants so much, she didn't get enough sleep, she hasn't been eating lately, and she is always in a down mood. The Four Horsemen decide to go on a mission and bring back her precious doll. But little did they know, this doll has a secret that has been hidden from the mare ever since she had him… But what?

Sequel to The Four Horsemen of Equestria.