Post-Ultimate Race. The Teku and the Metal Maniacs join the Silencerz and find themselves caught in a morally gray conflict with the rise of human/Drone Hybrids. The Racing Drones, led by a Hybrid that is more destructive than Gelorum, wish revenge on Vert Wheeler and a rogue, murderous Hybrid that leads the Silencerz throughout the new Racing Realms.

Ponyville faced an ordinary day, but then night came, and with it a black gateway into another world. It closes before any action can be taken, but now the Mane Six and the Canterlot nobility are tasked with finding out what they can about the gateway. Who created it? Where did it lead to? And most importantly, did anything come through?