The Vampire Diaries season 8 episode 10
Episode title: Nostalgia's a Bitch
Sybil enacts revenge on Damon by putting him in a catatonic state. Caroline and Bonnie enter Damon’s mind and run into familiar faces from the past, only to discover Stefan is the key to Damon’s fate. It’s a race against time for the bell as both Sybil and her sister Seline jockey for its control.
