When ponies are unable to wake up from their dreams, it's up to Capper and Luna to work together to figure out what's going on and how to wake them up before it is too late.
Nightmare Night draws near, and as it does, strange things begin to happen around Ponyville. Scary strangers threaten the town, and things will change for the Cutie Mark Crusaders forever.
Dusk Shine, archmage of Her Majesty Nightmare Moon, is assigned to aid the Lunar Inquisition in finding a terrorist known as "Ghost" where they last struck: Ponyville.