Svengallop brings Pinkie Pie to a competition of 2017 to see who's more annoying than a squeaky-voiced YouTuber named Fred Figglehorn.

Twilight, Carve and Aita are all getting their coronations soon; Carve will be queen of the changelings, Twilight will be ruler of Equestria, and Aita will be the new princess of friendship with retiree Chrysalis as her advisor. But while preparations are underway, human Spitfire enlists Sonata to spread distrust among the ponies, allowing her, the sirens and Svengallop to conquer Equestria. Following their attack, how will everyone bounce back to save their land once and for all?