While on a study-vacation in the Crystal Empire, Sunset, Sci-Twi, Starswirl, and Starlight will have to literally confront their past mistakes if Equestria is to survive.
Strange occurrences have been happening in the old manor just outside of town. When a certain cyan pegasus and purple alicorn decide to find out what exactly is going on, they discover something that was a bit more than they bargained for.
During a routine trip into the Everfree Forest, Fluttershy encounters a damaged metallic pony that doesn't quite know what it means to be alive. While it's far from normal, Fluttershy would never abandon another pony if she could help.