And come she shall, no matter whatte Forces of Chaos stande againste her. Yea and verily, upon the fifth year of the Greate Battle the Grey Knighte shall return to the Kingdomme of the Two Sisters...
As the Great War enters its fifth year, Princess Celestia searches for answers. What does this prophecy mean? Who is the "Grey Knighte", and what does a cross-eyed Pegasus have to do with any of this?

Harmony has returned to Equestria once again. However, the traumatic events of the Great War Against Discord have left a mark on the hearts of the Elements of Harmony and their loved ones. One autumn evening, a nightmare prompts them to revisit the days of the War... and confront a secret or two.