With Twilight's new school offering so much more than Cheerilee's smaller one, and staffed by none other than Princess Twilight herself, more and more parents are making the switch to the new School of Friendship, leaving Cheerilee a proverbial shepherd with no flock.

To cheer her friend up, Mayor Mare takes Cheerilee to Viva Las Pegasus! Naturally, because the story would be boring otherwise, things go awry.