A year after Jerome Valeska is killed by Theo Galavan, his cult attempts to revive him. As they do, a certain Starlight Glimmer accidently sends out a summoning spell that happens to hit Jerome's dead body. Apparently, it also had a life giving spell in it as well, because he returns to life shortly afterwards. Almost immediately, everypony realizes how dangerous he is when two ponies are found dead. When they find out he wants to get back to Earth to kill Bruce Wayne, they know it's up to them to stop him before it's too late.