Given command over a revitalized and strengthened Night Lords, Alistair and Shale Press begin to whip the shadowy organization into a militaristic frenzy, prepping the group for an all out war against Equestria. But as the dark disciples of Nightmare Moon thrust themselves into the role they believe has been their divine destiny, the true intentions of those they follow may not be so righteous...

Meanwhile, Equestria's protectors scramble desperately to its defense, crippled by internal misfortune and taken off guard by the sudden threat posed by the dark-magic users. Recognizing that her former friend and student has turned to the side of evil, Twilight Sparkle takes it upon herself to finally end the threat Alistair poses and end the path of destruction he and the other Night Lords intend to wrought.