Ivy reveals some startling news to Klaus about the dark magic that's been keeping him away from his family. Elijah turns to some unexpected allies to save Antoinette's life.

As Vincent, Marcel and Josh work to clean up the city, an uprising of purist vampires leads the supernatural factions into a deadly showdown. Hope's attempt to bring her family back together leaves her struggling with the consequences. Finally, Freya makes a life-changing decision.