THE PAST IS REVEALED AND THE SECRETS EXPOSED - Furious over the recent developments related to the safety of your baby, Klaus demands answers to Sophie, believing he was involved. Sophie Klaus and Rebekah reveals a disturbing secret from his past. Meanwhile, Klaus asks Marcel accompany the swamp when some remains are discovered, while Rebecca, Sophie and Hayley start a mission on its own. Davina trust an unexpected ally and reveals startling information about witches, which ultimately leads to a disturbing revelation. Daniel Gillies will also appear.