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.

With time running out, Klaus' ultimate plan to protect baby Hope at all costs continues to take shape. As tensions between the siblings come to a head, Camille reveals a vital piece of information that causes Elijah and Rebekah to reconsider their plan of attack against Dahlia. Davina finds herself one step closer to fulfilling the promise she made to Kol, while Freya is forced to take drastic measures to protect herself against Dahlia. Elsewhere, Marcel has to put aside his fury at Klaus in order to protect himself and everyone in their sire line. Meanwhile, Vincent finds himself torn between the prospects of a magic-free life away from New Orleans and a personal obligation to protect Davina. Finally, with their risky plan in place, the Mikaelson siblings prepare for the fight of their lives.

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.