THE RINGING OF THE BELL – 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. Matt also appears.
Special Guest Star
- Antagonists: Stefan Salvatore, Seline and Cade.
- Stefan finds Violet Fell in the Mystic Grill where she has killed several people, he then tells her why he turned her in the first place before he kills her.
- Cade kills Sybil and Seline.
- Damon is the latest character to have his birthday revealed in the series.
- Damon's birthday is revealed to be June 18, 1839.
- Damon is the third character revealed to have a birthday in June. The first was Katherine Pierce (Katerina Petrova) born on June 5, 1473 and the second was Elena Gilbert born on June 22, 1992.
- The Bell must be rung 12 times to kill a Siren but Seline reveals that Hellfire comes with it after it opens a bridge between the mortal world and Cade's (the psychic imprint of his death). The Hellfire will kill anything within miles of the bell. So Stefan and Seline plan to sacrifice the whole town of Mystic Falls to Cade by sending them to his Hell including Matt, Peter Maxwell, Sybil, Damon, Caroline and Bonnie.
- In this episode, Matt rung the bell 11 times before Damon knocked him out.
- Caroline discovers through Sybil that Bonnie offered the Cure to Enzo.
- This episode revealed that Caroline had forgiven Damon for everything he did to her because he was there for her mother, Liz.
- Bonnie tells Damon's version of her Grams that most of her friends are vampires and that she's in love with one.
- We finally learn what Damon wrote to Bonnie in his letter to her before he desiccated himself next to Elena.
- Matt becomes the Sheriff of Mystic Falls again.
- Damon apologizes to Matt for Vicki's death, even knowing that Matt may never forgive him for what he did.
- Unknown number of people in the Mystic Grill - Blood loss; killed by Violet
- Violet Fell - Staked; killed by Stefan
- Stefan Salvatore - Heart extraction; killed by Damon (temporarily)
- Seline - Incinerated; killed by Cade
- Sybil - Incinerated; killed by Cade
- Mystic Falls, Virginia
- Darren Malloy and Brooke Fenton are seen in a newspaper photograph. They were last seen in the Pilot.
- Tyler Lockwood is seen in this episode as a subconscious illusion. He was last seen The Simple Intimacy of the Near Touch in archive footage.
- Vicki Donovan is seen in this episode as a subconscious illusion. She was last seen as a ghost in Resident Evil.
- Henry Wattles is seen in this episode as a subconscious illusion. He was last seen in Things We Lost in the Fire as a hallucination.
- Sheila Bennett is seen in this episode as a subconscious illusion. She was last seen as a corporeal ghost in Home.
- Elizabeth Forbes is seen in this episode as a subconscious illusion. She was last seen in a flashback in You Decided That I Was Worth Saving.
- Anberlin's cover of Depeche Mode's "Enjoy The Silence" used in a scene with Vicki in the Mystic Grill, has been used in Lost Girls during Vicki and Damon's dance.
- Elena Gilbert is mentioned. She was last seen in I'm Thinking Of You All The While and in The Simple Intimacy of the Near Touch as archive footage.
Behind the Scenes
- "Nostalgia's a bitch" is a line from Damon to Anna from season one's Miss Mystic Falls.
- Hashtag during the airing is #BetchyNostalgia
- Jasmine Guy is once again credited as "guest starring" with the honorary "and".