10 years have passed since the coronation of Princess Twilight, and it is almost time for her and Cadence to take Celestia and Luna's place. But, Twilight has one last job; round up the old Elements of Harmony to pass them along to 6 new ponies. However, the elements are stolen, and it will take the Old and New elements together to find and save them. But, Rainbow Dash is needed by Cloudsdale and the Wonderbolts, and the spirit of loyalty must choose who she is loyal to.