For the last 26 years, humanity has been fighting a losing battle with an alien collective known as the Covenant. Fleeing a battle, one UNSC ship stumbles upon the planet Equis and makes a discovery that may just change the outcome for the better. As the Covenant closes in on victory, humans and Equestrians must form a tentative alliance in order to survive the onslaught of aliens bent on their total destruction.

NOTE: Equestria is anthropomorphic in this story