The Legion of Doom has just been defeated and everypony thinks the three need a harsh punishment, save one. One pony wants to find out what caused Cozy Glow to go down the path she did before punishing her.
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Chrysalis, Tirek, and Cozy Glow, are now reformed. Leo, a former human from Earth, is now an alicorn trapped in Equestria. While these four live their new lives, an evil legendary ram will stop an nothing to bring utter conquest.
Cozy Glow has been locked away in Tartarus as punishment for her crimes. There she meets her pen pal and new neighbor, Lord Tirek. She then proceeds to drive him completely nuts.
All processing their encounter with Aurelian very differently, the three villains part ways on paths that will ultimately lead them back together in a way they did not expect.
In an attempt to escape re-incarceration within Tartarus; Tirek, Chrysalis and Cozy Glow come across an ancient creature who offers them a different kind of escape.