When Tirek's brother Scorpan resurrects Sombra to use him against all of Equestria, Twilight and Co must not only retrieve Sombra from his clutches, but find a way to heal the damage that's been done to the former King. Can they save him in time?
Regretting their last encounter, Sombra wishes to try to make things up to Princess Luna... but isn't the rule "once bitten, twice shy?" He has a long way to go...
Fluttershy is faced with the task of caring for King Sombra, this time without the protection of the Princesses. Will she be able to reform him, as she did Discord, or will his dark will overwhelm her?