When Equestria appeared on Earth, they seemed friendly at first. But the nation showed it's true colors when they declared war, calling humans a 'vile' and 'unfit' species. Just as all hope for humanity seems lost, the SCP Foundation takes action.
When Twilight is thrust into a world of horrifying abominations, terrors she can't begin to imagine, and a never-ending fear of what's behind that corner, she's forced to survive in a world which wants nothing more than to see her die.