On the night of Christmas Eve, the CMCs encountered the ghosts of Apple Bloom's parents, who warned them that they will be visited by three ghosts if they don't confess to being Anon-a-Miss and make things right.
After the event at the school went wrong due to her past, Sunset wishes that she was never born. A mysterous teenaged girl, who claimed to be her gaurdian angel, showed Sunset what the world and her friends would be like without her.
On the night before Hearth's Warming, Diamond Tiara is visited by three spirits. The ghosts of Hearth's Warming Past, Present, and Future. Although, it may take more than a few supernatural phenomena to change Diamond Tiara's ways.
It's Christmas in the human world and everyone's celebrating... except Sunset Shimmer. She hates Christmas. What she doesn't know is that one night can change it all.