Klaus becomes angry over recent events involving the safety of his unborn baby and demands answers from Sophie. Meanwhile, gruesome remains are discovered in the bayou; and Davina reveals some shocking information about the witches.

Davina becomes violently ill and the repercussions affect the entire French Quarter. Sophie delivers some startling information about the harvest festival and presents a drastic plan to save Davina. Hayley, racked with guilt, confesses to Elijah about her role in Sophie's plan.

Tension between Marcel and Klaus results in Marcel refusing to help Klaus with a gruesome discovery in the Cauldron. Rebekah revisits her past when she finds the remnants of a sacrifice by the docks - the work of a dangerous warlock she has come across before. Klaus battles, but his opponent has an unfair advantage.

Marcel and Rebekah fret over whether secrets hidden for nearly a century are about to be exposed. Father Kieran deals with a witch from his past. Hayley and her werewolf clan enjoy a party. Sophie discovers something shocking at the cemetery. Klaus takes some dangerous measures that will affect everybody.

Rebekah and Marcel have been trying to keep a secret from Klaus which may come to the light as we flashback to 1919. Elijah and Monique bond. Hayley takes Sabine hostage to try and get information on reversing the curse on her clan.

Kieran lashes out unexpectedly after Cami's good intentions don't get her what she expected. Elijah and Klaus can't agree on how to handle the Crescent Wolves. Elijah visits the bayou were he is witness to a explosion that see's hatred between the communities intensify. Hayley learns about her family from Marcel.

Hayley atempts to save her unborn baby from the witches. Francesca meets with Oliver and Jackson to decide the future of the werewolves in New Orleans.