Takes the event of Tell Your Tale Lavarynth and inspired by MaggieHeartloves, Little Pony Legend: Guardians of Harmony finale.
As the Mane Seven, Sarah and her family complete trials to join the Dragon Tribe of the Dragonlands with Opaline defeated, the Spirits of Harmony sense another distrubance in their old friends world. This time from an Alternate version of the Storm King and Tempest. It'll be up the ponies and their dragon friends to save the day and special help from Misty to reform Tempest whose situation with the Storm King is similar to her and Opaline's.