In the twentieth episode of the second season of The Originals, titled " City Beneath the Sea ," the Mikaelsons face intensified threats from the witch Dahlia. Klaus makes a pact with Dahlia to protect his daughter Hope, while Hayley moves to remove Hope from the family's influence, and Elijah and Freya disagree over strategy. You can watch this episode and find more information on Apple TV and TV Fanatic .