A group of new faces come to Canterlot, one who wants to lay low, two who wants to close the portal to Equestria, and one more who wants use it to let the demons through. Canterlot can't seem to catch a break can it.
When Celestia denied Sunset her destiny, the young mare left her side, intending to obtain what was rightfully hers. She believed the mirror portal would lead her on the path towards it... what she found was a world unlike anything she had ever seen
For over a thousand years now Equestria has known a near unbroken peace, one broken with the passing of a month long storm. Now the princesses are forced to rely on outside help in hopes of saving their nation. Considering such a thing is possible.