It began with an ending. When the sun sets on one age, it rises on another. The gods of old have been captured or slumber through their destruction, and when the civilization that once worshipped them has long faded from memory, a new civilization crops up to take it's place.

The Ponies of Equestria are enjoying a new golden age, the Age of Friendship, shepherded in by the newly crowned Princess Twilight Sparkle, sole monarch of the land. An expedition is sent far west to build a new trading outpost dedicated to the teachings of friendship and it's spread far and wide...but in midst of establishing their new town, these settlers uncover something ancient and evil that seems bent on destroying the very world they hold dear as it had before.

They uncover a monster.