After the events of King Sombra's attempted revival and his continued reign on the Crystal Empire, the Mane 6 fall back into their mundane lives among the citizens of Ponyville. However, as the Element of Magic, Twilight Sparkle undergoes another assignment from Princess Celestia, she begins to see things going amiss in her beloved town, among her friends, and even the land of Equestria itself. Will she be able to understand the complex series of events that are befalling the land? Or is the more important question this: Is she able to stop it?