Spike and Twilight return from the alternate world to only see that Spike has not changed back to a dragon. Spike must come to terms with his new form and fight to protect those that come to rely on him.
After being banished, Spike sets out to find out about both himself and his heritage. Though as he progress in his journey he will find out he is much more than he realize and deep within him a power unlike any other.
Several years into the future, Twilight and Spike have gone their separate ways. But now, it is up to the princess to find her former assistant and convey a message that might bring them together again: their mutual friend, Rarity... is dying.
Sunny and Hitch learn that a dragon named Spike was responsible for sending Sparky's egg to Maretime Bay. They and their friends then seek out Spike to try to get some answers about what happened to Equestria and Princess Twilight.
Spike and Twilight have always had a strong connection, but neither of them realize how deeply their fates are connected. Spike will embrace his true destiny after an alteration at his 17th birthday
Nobody knew what had happened. All we know with princesses gone no one is around to maintain harmony that is until one dragon and a certain draconequus has had enough!