The story follows the events of the most devastating war in Equestrian history, and four of the many lives that are changed by it...
Rivet, a timid young griffon, leaves Cloudsdale in an attempt at a fresh start, and decides on Ponyville as the best place to find it. But he has barely settled into his new life when the entire nation is plunged into war.
Big Macintosh, a 'gentle giant', struggles with his own identity as the war slowly strips away everything that made him who he is.
Shining Armor, a prince of Canterlot, joins the struggle against the invaders, intent on doing everything he can for his people.
Zeniah, a naive young zebra, cast into the flames of war out of desperation.
But the fog of war blurs the line between friend and foe and, as the war progresses, a deeper conspiracy is slowly revealed...