We are all familiar with the story of the Canterlot Wedding, where the queen of the changelings foalnaps and impersonates Princess Cadance during her wedding as a ploy to invade the city with her army. Yet there is another Equestria out there where the roles of the impersonated and the impersonator are a little different.
We enter at the wedding ceremony; the nobles, the friends and family, the bride and groom have gathered, but the best mare hasn't been seen since her outburst at the rehearsal...