The Global Defense Initiative and the Brotherhood of Nod have fought many wars, ranging from tiberium infested wastelands to lush, clear blue zones, but when a Scrin Threshold takes them to a new, unknown land, the fate of its equine occupants becomes uncertain. A normally peaceful place, Equestria's integrity hangs in the balance as the tension between the factions increases, war a major possibility as they compete for dominance over this new found realm.