Cutie Mark Crusaders Time Travelers, yay! ...Wait, what? When older versions of Apple Bloom, Sweetie Belle, Scootaloo and Spike appear from the future, Twilight and her friends are in for an adventure that may decide the fate of time itself!
During a visit to her friends through the mirror, Twilight is confronted with difficult to grasp information. This gets out of hand when she decides to get to the bottom of it. She must know how Pinkie can have a boyfriend in that dimension.