Vampire Diaries Season 2 Episode 17

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Episode 17: Know Thy Enemy

Elena and Alaric become angry with John when Isobel's unexpected arrival devastates Jenna; Alaric punches John as a result. Alaric meets up with Isobel. She tells him she just wants to apologize and that she did love him. After saying this, Alaric is overpowered and abducted by a warlock from Klaus' inner circle named Maddox. Meanwhile, Bonnie works with Jeremy and Damon in order to find the spell they will need to gather the power of the witches killed in the massacre. Damon takes them to the site where the witches were burned. Damon knew where it was because he had tried to save Emily. Inside the house Damon finds that he cannot move. His ring then stops working and he begins to burn. He tells Bonnie to help and she closes her eyes and starts muttering a spell. Bonnie tells him that she doesn't think that the witches like him being there. Elsewhere, Caroline is heartbroken and doesn't know what to do about Matt. Matt is waiting at Caroline's house when she arrives back home. He demands that she tell him what happened to Vicki. After Caroline has told him, he tells her that he doesn't want to remember any of it. Caroline compels him to forget, but it is later revealed that it was a setup by Sheriff Forbes to find out everything about the vampires. Matt had already drank some vervain before he went to Caroline's house, so her compulsion didn't work. Isobel kidnaps Elena and takes her to a cemetery where they stand at her grave. Isobel receives a phone call from Maddox who tells her that she has finished what Klaus compelled her to do and is free to let Elena go. Isobel then tells Elena she is sorry that she was a disappointment to her, then removes her necklace and burns to death in the sun. That night, Elena is wondering why she feels bad about Isobel's death. Stefan says it is because she was her mother. John then wakes up after he was killed by Isobel as a distraction for her to kidnap Elena. He and Elena have a talk and he tells her that if his not being there makes her feel safe then he'll leave, but Elena tells him that she wants him to stay because he is the only parent she has left. Stefan and Damon realize that Bonnie is their new secret weapon because neither Isobel nor Katherine knew that Bonnie had her powers back and the power of the massacred witches. Bonnie and Jeremy are at Elena's house when Jeremy reads the warning the witches gave to Bonnie and is upset because if Bonnie uses too much power she will die. He asks her how much power she will need to kill an Original and Bonnie tells him that she needs all of it. She tells him that if she dies it was to save Elena, him, and everybody else. Katherine, who had been taken by Maddox, wakes up in an apartment to see Alaric in a chair and Maddox chanting a spell. Alaric then walks up to Katherine, takes her face in his hands, and says that he has missed her. Katherine realizes that it is Klaus who has taken control of Alaric's body.