Deep in the temple where Nightmare Moon was defeated, a secret lies dormant. Generations have passed, forgetting the reason why a temple containing the Elements of Harmony was kept deep in the forest. Little do they know, before Celestia and Luna arrived to install order to Equestria, the ponies there had created a cult deep within the forest, creating the Elements of Harmony and bringing in the era of camaraderie and friendship. The Royal Sisters pushed the cult aside, and attempted to shroud it's history. Nothing stays buried for long when Twilight's around, though, and soon it falls to her and her friends to restore peace as the God of the Prismi starts to incite a civil war.