After months of thwarting off dangerous threats and deadly attacks, the Mikaelson siblings finally come face to face with the one person that could lead to their ultimate demise. With the stakes higher than ever and the compound overrun by an army of his oldest sworn enemies, Klaus (Joseph Morgan) is put on trial for centuries of atrocities he's committed.
Meanwhile, Marcel (Charles Michael Davis), who has been spiraling out of control following an act of betrayal by those closest to him, is stunned by the unexpected arrival of someone from his past. Finally, Elijah (Daniel Gillies), Freya (Riley Voelkel) and Kol (guest star Nathaniel Buzolic) frantically search for a way to save their family before it's too late.
