It's been three years since Spike and Big Macintosh joined the war. Spike has a secret that is the cause of his joining the war that he feels would destroy his friendships, but can it stay hidden? King Sombra has returned and has joined forces with the duke of the drakos. The Elements of Harmony are called in to defeat Sombra who is turning the war in favor for the drakos, and Spike's squad is called in to protect them. Sombra has a grudge against the purple drakos, and leverage.