Still under the control of Sybil, Damon is determined to kill his brother Stefan.

In the upcoming episode of "The Vampire Diaries" season 8, Sybil's influence will get the better of Damon. The promo for episode 6 reveals that Damon will not only seek to kill his own brother, but also Bonnie, Caroline, Alaric and all of his friends in Mystic Falls.

Reports also suggest that while Damon is on his mission to kill everyone, Caroline will do everything she can to ensure the safety of her twins. Episode 6 will follow Sybil as she continues to take over Damon and Enzo, forcing Stefan and the rest of the gang to make difficult decisions just to stop them. The episode will also see Sybil open up about her sister Seline and the evil they are set to face soon.

"When her children become the focus of the Siren's latest plan, Caroline takes drastic measures to ensure nothing gets in the way of keeping her family safe. In a race against the clock, Stefan pledges to do everything he can to save the twins, while tensions between Alaric and Caroline boil over, leading them to face some harsh realities about the future of their family. Meanwhile, when Enzo finds himself unable to fight off Sybil's latest move, Stefan dives into his subconscious and along the way, sets off a chain of events that leaves him faced with a life-changing decision," reads the synopsis on Cartermatt.

Titled "Detoured on Some Random Backwoods Path to Hell," "The Vampire Diaries" season 8, episode 6 airs on December 2 on The CW.