Harmony in Equestria has been nearly destroyed after a terrible tragedy tore the land apart. With Princess Twilight's sudden abdication on top of the ever-growing tensions with the Griffon Empire, the world is a powder keg, and sparks are flying.

Pinkie Pie has a wonderful life. Surrounded by friends and family, she has everything she could ever want, and never stops smiling. One Hearth's Warming Eve, however, that all changes when Pinkie Pie is abducted and subject to horrific cruelty.