The Devil is coming, and he's bringing friends.
When Nora finds out Ben was banished from the Angelic City she needs to know what happened—even if it means going to Hell.
Beelzebub's right-hand, Jack, forces Ben to revisit a painful part of his past while the demon lord thwarts Nora's attempts at rescuing him.
After a narrow escape Nora joins Lucifer on a trip to Hades in the Underworld, while Ben finds some much needed help from the Valkyrie in Purgatory.
Together they must find a way to stop Beelzebub, or he will make Earth Hell for the living.