In the city of New Orleans, Klaus holds complete control of the board, but the peace is disrupted by the girl he hoped to love and the brother he thought long dead. With terrible secrets of their own, Kol and Caroline enlist Klaus to help them fight an even bigger threat to their world, and Caroline finds that after all that's happened, she and Klaus may finally have their chance.

The Mikaelson family had a saying. "Love beyond family is the greatest weakness. We do not feel and we do not care." It was a code he lived by. So why did he save the girl? Klaus / Caroline.

The girls come up with a plan to send Caroline back in time to kill Klaus before he ever arrives in Mystic Falls. But it turns out their plan won't be as simple as they thought. Especially when Caroline gets stuck in the past & only has Klaus to rely on.