So, which takes precedence: The Temporal Prime Directive, or the Omega Directive? Good question. No one's answered it before. Which really, really kind of sucks for the crew of the U.S.S. Hydra when they find themselves in a situation where they have to pick between the two. Naturally if they don't, then the entire Federation is doomed - because these things can never be simple.

"Black horn, lost horn, found where it lies - Ebon Queen with crimson eyes - Beneath the earth she starts to rise - Sovereign of Shadow seeks her prize." As a black sun rises across Equestria, the mane six must face and ancient and dark foe...