Klaus's family has yet to forgive Klaus's actions. Klaus's old friend decides to show up and show him Chaos. While Elijah tries to hunt werewolves down to protect Hayley leaving Freya on nanny duty. Meanwhile Marcel's has organized another vampire community, while Davina is learning to control the coven as their leader only to find it's not as easy as it looks and seeks help from Hayley.

After discovering that poachers have begun taking out werewolves in the bayou, Elijah and Jackson grow concerned for Hayley's safety when she fails to show up during the full moon. Meanwhile, Davina, the only one with the answer to Hayley's whereabouts, plots ways to use that to her advantage. Elsewhere, Cami approaches Klaus with her theory on who is behind the series of murders in the French Quarter, while Lucien delivers to Elijah an unsettling warning about the war brewing among the sire lines. Finally, after receiving a dire prophecy about the future of the Mikaelson siblings, Klaus takes extreme measures to determine the validity of this potential impending threat.

Klaus seeks to take revenge for the taking of his baby, Hope, by Hayley and Jackson whom Elijah also seem to be against Klaus. Meanwhile Davina tries to lead her coven, and seeks help from Freya to bring Kol back. Hope is kidnapped, meanwhile Klaus is hostage at the attic.

In order to uncover what his old acquaintance Tristan is really up to in New Orleans, Elijah considers attending a gala thrown by a mysterious group of ancient vampires known as The Strix, while Hayley invites herself to attend with him.

Hayley and Jackson look after Davina after she made some enemies, meanwhile Elijah asks Marcel with help to do with Triston, Cami and Vincent keep an eye out for Lucien when things go awry; Klaus reunites with his old love and hears secrets he never would think of before now.

When Elijah and Freya realize that Rebekah may be the target of The Strix's latest plan, they do whatever it takes to protect her. Klaus spends time with Aurora to figure out where her loyalties lie, while a dangerous run-in with a member of The Strix leads Hayley and Marcel to make an unsettling discovery.

Klaus and Elijah plan a Thanksgiving gathering in hopes of negotiating a truce; Vincent and Marcel realize Davina might be in over her head; Cami encounters a new threat.

After learning that Cami's life is in danger and Aurora may be to blame, Klaus is forced to engage in another one of Aurora's devious games and follow a series of clues she's left behind for him. Meanwhile, Elijah, Freya and Hayley take drastic measures against Tristan when they discover he holds a valuable piece of information they need. Elsewhere, Aya gives Marcel an ultimatum that leaves him with a difficult decision to make, while tensions between Hayley and Jackson cause her to reevaluate her involvement in Mikaelson family matters.

The unexpected arrival of Stefan Salvatore may be the key to helping Freya rescue Klaus and Elijah from a magical trap.

When rumors begin to spread about the remaining white oak bullet, dangerous foes descend upon New Orleans in an attempt to take down Klaus once and for all. As the threats continue to grow, Elijah urges his siblings to lay low at the compound while Marcel, Vincent and Josh chase down a lead involving a mysterious vampire named Sofya , who may have the answers they're looking for. Meanwhile, tensions inside the compound build as Kol is forced to come face to face with his brother Finn, the person responsible for his death. Elsewhere, Klaus and Hayley seek shelter with her former pack and stumble upon some unsettling news involving the threat against them.

When its discovered that Freya has been kidnapped and is in the hands of a dangerous new threat, the Mikaelson brothers are forced to put aside their differences in order to save her before it's too late. Following a lead that brings them to Mystic Falls, Elijah and Finn run into deputy Matt Donovan, who does not take well to new vampires in his town. Meanwhile, Klaus and Hayley work together to uncover the motive behind one of Lucien's secret agendas, while a troubling shift in Kol's behavior leaves Davina concerned for their future together.

As the city celebrates its annual Jazz Fest, an unlikely team of Mikaelson foes joins forces to take Klaus hostage. Leading the charge to get their brother back, Elijah and Freya face off against a powerful force like none they've ever seen before, while Hayley and Cami set their own risky plan in motion to rescue Klaus. Meanwhile, when Kol's erratic behavior worsens, Davina has no choice but to turn to Marcel and Vincent for help.

Everyone joins together in an attempt to save Cami's life.

In the wake of a ruthless plan that has left their family shattered, Klaus, Elijah and Freya desperately search for a way to take down Lucien once and for all. However, their efforts are put on hold following an urgent plea for help from Kol and Marcel. At Klaus' insistence, Freya and Elijah reluctantly stay behind to offer their help, while Klaus and Hayley head to the bayou after uncovering Lucien's latest plan. Once there, an unexpected showdown between Klaus and Lucien forces Freya to take matters into her own hands, setting off a chain of events that will change all of their lives forever. Vincent and Davina also appear.