In fair Verpona, where we hang our streamers, two party-planning businesses, both alike in silliness, reignite their ancient rivalry. A pair of star-crossed ponies, Pinkie Pie and Cheese Sandwich, fall in love, causing the Capulets and Montagues to start polishing their sparkliest party cannons. It's up to the pair to help their companies find common ground before Princess Cadance bans them from ever partying again!