Rebekah arrives in New Orleans at her brother Elijah's insistence, but, concerned that Klaus is up to no good, she seeks help from a reluctant Sophie. Marcel enlists Davina's help.

Betrayal at the masquerade ball? Klaus and Rebekah come together to attempt to unravel Marcel's empire from within, in spite of Elijah's concerns. They enlist help from Sophie.

Determined, Rebekah is on a mission to get to the bottom of a recent, strange encounter involving Elijah. Davina convinces Marcel to let her attend an annual street music festival.

When Klaus discovers Hayley's life is being threatened, he goes to extreme lengths to protect her and their unborn baby. Cami turns to Father Kieran for guidance when she is having a difficult time dealing with the tragic events of her past. Feeling as though he can trust no one, Marcel visits an old friend to seek out some advice, while Davina takes steps to learn how to control her magic. Finally, Klaus delivers some surprising news to Father Kieran.

When someone from Hayley's past makes a startling revelation, she grows concerned for herself and the baby. Amidst growing tensions between them, Klaus and Elijah turn to Sabine for help in locating Hayley, who has gone missing. After making a trip down to the bayou, Klaus has a surprising and dangerous encounter with an unexpected visitor. Meanwhile, Davina makes a surprising connection, and Marcel makes Rebekah an enticing offer that leaves her torn.

In the war between Klaus and Marcel, Rebekah stands against her own brother Klaus. The chemistry between Elijah and Hayley gets stronger. Klaus accuses his siblings of distrust and betrayal.

Klaus tries to get adapted to his new duties as he became the king of the city. He offers Marcel a compromise and he fixes his relationship with his siblings. Davina feels betrayed by Marcel. She finally finds an allay, Cami.

As the French Quarter prepares for its annual celebration of the Casket Girls Festival, Cami suffers through as Davina attempts to free her of Klaus' mind compulsion. Elijah and Marcel form an unlikely alliance as Klaus sets his plan in motion to get Davina back. Once it's known that Davina is missing, Sophie gets in on the hunt to track her down. Meanwhile, Hayley is forced to make a tough decision after receiving an unexpected phone call, and Rebekah sets her own plan in motion when she enlists the help of someone from Marcel's past.

Elijah is taking control of the quarter and receives a surprising offer, and they know how to throw a party.

"Genevieve asks Elijah to allow her coven to publicly celebrate a traditional feast day, where members of the community offer the witches gifts in return for blessings. Monique and Genevieve disagree over what the ancestors want from them, and Genevieve reveals her plan to build the witches' power. When Elijah focuses his attention on restoring their home to its former glory, Klaus accuses him of doing it only to impress Hayley . Next, Klaus sets a new plan in motion by finding Cary , a werewolf from his own line, and sending him off to find a missing piece of family history. Marcel lets Thierry in on his new plan to rebuild his power, but Diego has his own ideas about the future. At the Feast of the Blessings, Monique and Genevieve try to use the ceremony to teach Davina a lesson, but Klaus intervenes and gives Davina a surprisingly important gift. While Hayley struggles to decide where her loyalties should lie, the ceremony explodes into violence."

Desperate to help Kieran, Camille insists on an unconventional treatment, but her good intentions lead Kieran to a violent episode. After Klaus and Elijah disagree over the best way to handle the Crescent Wolves, Elijah makes a trip to the bayou, where he is witness to a horrific explosion that only adds to the hatred and mistrust among the communities. While Jackson and Elijah work to save the wounded, Hayley learns a surprising piece of her family history from Marcel.

Klaus and Elijah enact a plan to collect the sacred stones needed by Genevieve in order to forever change the fates of Hayley and the werewolf community. Realizing that Klaus' plan will lead to the extermination of all French Quarter vampires, Marcel rallies an army determined to take down the Mikaelsons and regain control of the city. Davina warns Josh to leave town as she is forced to make a fateful decision that will turn the tide of war. Meanwhile, Francesca threatens Cami, who attempts to decipher a code that results in a surprising revelation among the city's factions.

As the baby's due date draws near, Klaus and Elijah embark on a search for Hayley, while Hayley determines to do whatever it takes to keep her unborn baby safe and away from the witches. Francesca takes a meeting with Oliver and Jackson to determine the future of the werewolves in New Orleans. In the aftermath of a surprising attack on Marcel and his vampires at the compound, Davina and Cami join resources to take down Klaus. Finally, in a desperate move to protect those most important to him, Klaus makes a heartbreaking decision.

Hayley struggles with her powers. Marcel sides with Klaus and gets revenge over the wolves. Esther is busy plotting her own plans. Everyone wants control over the city.

Davina takes Mikael to a cabin to heal from his wolf bites. Klaus searches for them. Elijah, Marcel and Hayley try to rescue some young wolves.

Going after everything Esther loves. Klaus and Hayley seek an antidote for Elijah in the bayou assisted by Marcel and Josh. Kaleb takes Davina to an old hangout.

Rebekah is on the run with baby Hope.

Finn puts a spell on the compound, trapping wolves and vampires. Klaus takes Cami to the safe house, then confronts Kol about Rebekah's whereabouts.

Finn captures his brother's spirits, while the vampires remain trapped and their hunger grows.

Rebekah becomes interested in a girl. Hayley struggles with coming clean and is surprised by something Jackson admits. Klaus learns something and heads to confront Hayley. Vincent sets his eyes on Marcel for answers to what Klaus is hiding.

With the final preparations for her union to Jackson underway, Hayley begins to question whether the ritual will actually work. After arriving to the compound, Elijah has a tense encounter with Klaus and quickly suspects that his brother may be up to something. Meanwhile, Kaleb, who is harboring a devastating secret from Davina, seeks help from Rebekah when he realizes time is not on his side. Lastly, Cami makes a startling revelation involving baby Hope.

While searching for a way to vanquish Dahlia, Klaus is faced with another threat.

Setting the stage for a bloody showdown, Dahlia gives Klaus and Hayley a deadline to turn over baby Hope. Elijah attempts to convince Klaus that they need to work together in their fight against Dahlia, but Klaus forges ahead with his own dangerous plan, leaving everyone concerned about his next steps. Meanwhile, when Hayley realizes their chances of outrunning Dahlia are slim, she devises a risky plan and enlists Aiden's help. Elsewhere, Freya gives Rebekah and Elijah an ultimatum, and Marcel strategizes on how best to deal with Klaus' erratic behavior.

When Dahlia devises a clever way to get Klaus' attention, she reveals some startling details about baby Hope and leaves him with an enticing proposition to consider. Elsewhere, while Elijah and Freya find themselves with opposing views on how best to handle Dahlia's looming deadline, Rebekah, Davina and Cami work together to come up with their own strategy. Meanwhile, following a tense standoff between Elijah and Jackson in the bayou, Hayley is left to make a difficult decision about her and Hope's future. Finally, Vincent, who is eager to leave his witch past behind him, approaches Davina with an offer that leaves her intrigued.

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.

Elijah learns that Aya might have knowledge about an elusive weapon that can take down Original Vampires for good. Davina receives a tempting offer which brings her closer to reuniting Kol.

When Klaus learns of Cortez's arrival to vendetta against him, Klaus finds himself dealing with this new threat. Meanwhile, as Cortez begins threatening the lives of innocent residents, Vincent has no option but to assist the vengeful vampire in his plan to take down Klaus.

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.

After receiving new visions of the looming prophecy, Freya uncovers that her family is on a collision course with a dangerous new enemy. Meanwhile, with the help of Detective Kinney, Vincent and Kol travel to the ancestral world to put a stop to the witches and take back their city once and for all. Elsewhere, Klaus and Elijah confront Marcel after a heartbreaking plan gone wrong has sent him spiraling. Hayley and Davina also appear.

On the fifth anniversary of the Mikaelson's defeat, Marcel is king of the city and welcomes the unsired vampires to New Orleans, only to find they pose an unexpected threat to his rule, leading him to seek counsel from an unlikely source.

After being cured and woken, the Mikaelson siblings join Hayley in an effort to rescue Klaus from captivity, even if they must face Marcel in the process.

When it's discovered that The Hollow has employed a mysterious servant to do its bidding, Klaus and Elijah host an elaborate party in order to lure the new threat out and uncover its identity.

When it's discovered that The Hollow's latest servant is on the loose, Freya places a protection spell on the compound, forcing Klaus, Hayley and Hope to remain inside. Meanwhile Elijah takes matters into his own hands.

Rebekah and Kol return home to stand by their family against the Hollow. Freya recruits Hayley for a dangerous journey. Marcel leads a hunt for the Hollow. Kol considers the lengths he'd go to see Davina again.

When it's discovered that The Hollow is using a magical totem to fuel her power, Freya enlists Rebekah and Klaus' help to locate and destroy it.

The Mikaelsons find themselves out of options as they face the all-powerful and un-killable entity known as The Hollow. With the life of Hope at stake, Vincent proposes a final, desperate plan.

Desperate to see her father Klaus after seven years, Hope resorts to drastic measures to bring him back to New Orleans.

When a mysterious disappearance brings Klaus back to New Orleans, Hope looks forward to the prospect of seeing her father again. However, when the dark magic that had been keeping them apart begins to manifest in dangerous ways across the city, Vincent turns to Ivy for guidance about what it may mean. Elsewhere, Marcel returns to New Orleans amidst increased tensions between the supernatural factions, while Freya makes a decision about her future with Keelin. Finally, Roman's surprise visit to the Mikaelson compound forces Hope to reveal some dark truths about her family.

In the immediate aftermath of having his memory erased by Marcel, Elijah awakens to find himself in the middle of nowhere and without a clue as to who he is. Unable to control his instinctive vampire ways, Elijah encounters Antoinette, a beautiful and free-spirited vampire, who helps him navigate his new life. However, a run-in with Klaus threatens to destroy the peace he's finally found.

Frustrated by the lack of progress made in the search for Hayley, Klaus turns up the heat by taking hostages from each of the three New Orleans supernatural factions. Freya goes to Mystic Falls to check on Hope, who has been sent back to the Salvatore School. Vincent seeks guidance from Ivy after learning that Klaus' erratic behavior is escalating.

A mysterious clue sent to Klaus (Joseph Morgan) leads him one step closer to finding Hayley. Antoinette (guest star Jaime Murray) opens up to Elijah (Daniel Gillies) after her past comes back to haunt her. Meanwhile, Marcel (Charles Michael Davis) makes a decision that puts him at odds with Klaus. Finally, Hope (Danielle Rose Russell) takes matters into her own hands to fix the mess that she's created.

Hope sets off on a dangerous mission to end the mess she started, and Klaus turns to Caroline for help when he discovers Hope's plan. Plus, Vincent and Freya clash over Declan.

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 pressing matters rage on in New Orleans, the Mikaelson siblings find themselves forced to set aside their differences and work together to escape a "chambre de chasse."

Vincent, Marcel and Josh work to clean up the city, when an uprising of purist vampires leads the supernatural factions into a deadly showdown. Hope faces the consequences of trying to bring her family together. Freya makes a big decision.

Klaus helps Hope cope with her pain in an unconventional way. A figure from Elijah's past comes back seeking help. Elsewhere, Marcel takes on the nightwalkers, while Vincent deals with the fallout of a fateful decision.

Klaus helps Hope cope with her pain in an unconventional way. A figure from Elijah's past comes back seeking help. Elsewhere, Marcel takes on the nightwalkers, while Vincent deals with the fallout of a fateful decision.

When Dahlia devises a clever way to get Klaus' attention, she reveals some startling details about baby Hope and leaves him with an enticing proposition to consider. Elsewhere, while Elijah and Freya find themselves with opposing views on how best to handle Dahlia's looming deadline, Rebekah, Davina and Cami work together to come up with their own strategy. Meanwhile, following a tense standoff between Elijah and Jackson in the bayou, Hayley is left to make a difficult decision about her and Hope's future. Finally, Vincent, who is eager to leave his witch past behind him, approaches Davina with an offer that leaves her intrigued.

Davina takes Mikael to a cabin to heal from his wolf bites. Klaus searches for them. Elijah, Marcel and Hayley try to rescue some young wolves.

Finn puts a spell on the compound, trapping wolves and vampires. Klaus takes Cami to the safe house, then confronts Kol about Rebekah's whereabouts.

When someone from Hayley's past makes a startling revelation, she grows concerned for herself and the baby. Amidst growing tensions between them, Klaus and Elijah turn to Sabine for help in locating Hayley, who has gone missing. After making a trip down to the bayou, Klaus has a surprising and dangerous encounter with an unexpected visitor. Meanwhile, Davina makes a surprising connection, and Marcel makes Rebekah an enticing offer that leaves her torn.

Elijah is taking control of the quarter and receives a surprising offer, and they know how to throw a party.

"Genevieve asks Elijah to allow her coven to publicly celebrate a traditional feast day, where members of the community offer the witches gifts in return for blessings. Monique and Genevieve disagree over what the ancestors want from them, and Genevieve reveals her plan to build the witches' power. When Elijah focuses his attention on restoring their home to its former glory, Klaus accuses him of doing it only to impress Hayley . Next, Klaus sets a new plan in motion by finding Cary , a werewolf from his own line, and sending him off to find a missing piece of family history. Marcel lets Thierry in on his new plan to rebuild his power, but Diego has his own ideas about the future. At the Feast of the Blessings, Monique and Genevieve try to use the ceremony to teach Davina a lesson, but Klaus intervenes and gives Davina a surprisingly important gift. While Hayley struggles to decide where her loyalties should lie, the ceremony explodes into violence."

Setting the stage for a bloody showdown, Dahlia gives Klaus and Hayley a deadline to turn over baby Hope. Elijah attempts to convince Klaus that they need to work together in their fight against Dahlia, but Klaus forges ahead with his own dangerous plan, leaving everyone concerned about his next steps. Meanwhile, when Hayley realizes their chances of outrunning Dahlia are slim, she devises a risky plan and enlists Aiden's help. Elsewhere, Freya gives Rebekah and Elijah an ultimatum, and Marcel strategizes on how best to deal with Klaus' erratic behavior.

A mysterious clue sent to Klaus (Joseph Morgan) leads him one step closer to finding Hayley. Antoinette (guest star Jaime Murray) opens up to Elijah (Daniel Gillies) after her past comes back to haunt her. Meanwhile, Marcel (Charles Michael Davis) makes a decision that puts him at odds with Klaus. Finally, Hope (Danielle Rose Russell) takes matters into her own hands to fix the mess that she's created.

With the final preparations for her union to Jackson underway, Hayley begins to question whether the ritual will actually work. After arriving to the compound, Elijah has a tense encounter with Klaus and quickly suspects that his brother may be up to something. Meanwhile, Kaleb, who is harboring a devastating secret from Davina, seeks help from Rebekah when he realizes time is not on his side. Lastly, Cami makes a startling revelation involving baby Hope.