On the fifth anniversary the Mikaelsons 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.
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.
Old wounds are re-opened when Elijah and Marcel are forced into an uneasy alliance. Together, they meet with Alaric who has tracked down a crucial artifact that could help in their fight against The Hollow.
When The Hollow sends a terrifying message to Vincent, he must team with Haley and Freya to embark on a desperate mission to stop the Hollow once and for all - even if it requires a heartbreaking sacrifice.
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.