It is said that 2000 years ago, a powerful alicorn stallion once ruled all Equestria with an Iron Hoof. However, his twin daughters Celestia and Luna sealed him away with the power of the seven Elements of Harmony, artifacts that were older than Equestria itself. Now, most ponies don't even believe that story to be true, even though the Eclipse Extravaganza is held every 50 years on the supposed anniversary of the event. But, when Janice Dazzle, personal student to the Princesses, comes to Ponyville to help prepare for the upcoming festival, Strange things occur that get them to believe.