Equestria has always heard the stories.
The stories of a civilization who walked on two legs and worked only in plastic, heard that they were the only ones to master the Magic of Imagination, heard that they became some of the most technologically advanced creatures ever created.
Yet, they've also heard the stories saying that their universe was invaded by a corrupted version of themselves, waging an all-out war to save themselves and imagination.
What Equestia hasn't heard, is the story of how some of these creatures found their way to Equestia, as well as bringing a few of their friends...