This story is a sequel to Equestria Girls 2: Rainbow Rocks

Sunset joins the Chaos Rainbooms after she helped her friends defeat the sirens after her long way of being a bully at CHS, everyone finally trusts Sunset Shimmer and not only that, but her and Shadow are true friends again. After all of that, today is the competition against CHS’s rival school, Crystal Prep Academy, a school that beat CHS multiple times in a competition called the Friendship Games.

The Chaos Rainbooms thinks it’s time for a change and that they aren’t going to lose to Crystal Prep and were determined/ready to win, but to their shock, they saw Twilight and two of her friends they don’t know about, but Sunset, Rainbow, Fluttershy, Rarity, Pinkie, and Applejack must not “pony up” or else that would be considered cheating according to Vice Principal Luna.