It’s about a young Asgardian who has ties with Gusty the Great now years later is grown and ready to start his own adventures (imagine Wonder Woman from dc super hero girls, and Finn the human and Leonardo from TMNT) merged into one Asgardian
The Angriest of the Emperor's Angles has come to Equestria and unless Twilight and the others can convince him otherwise things might get very... messy.
It's been almost a decade since the Battle of the Bands and Sunset Shimmer has been trying to clean up the mess she made. After series of unrelated crimes, Sunset, now known as The Phoenix, may need to finally ask for help.
The girls have returned from Camp Everfree with new powers and pressing questions about them. They won't have much time to find the answers they want as the sky above them shatters, dropping pain, anger, and hope through the void between worlds.
Over three thousand years since the last Avatar and the world has changed immensely. Harmonic Convergence is once again threatening the world, but it's not our world that needs saving.