Vampire Diaries season 3 Episode 13

Elena and Alaric are shocked when they learn of Elena's fingerprints on the wooden stake that killed medical examiner Brian Walters. After being accidentally attacked by Tyler, Bill suffers the consequences of having vampire blood in his system which was given by Dr. Meredith Fell; when someone stabs him, killing him and turning him into a vampire. Along with the lively company of Elijah; Damon, Stefan and Klaus agree to consult a truce over dinner, except everything takes a turn when the daggers are pulled out of Kol (Nathaniel Buzolic), Finn (Caspar Zafer), and Rebekah (Claire Holt), who are Klaus's siblings. Bill decides not to complete the transition leaving Caroline distraught, and Elena and Matt arrive back home to find Alaric wounded, and to save him Elena being a supernatural doppleganger had to kill him, so that he could come back to life. Bonnie and her mother Abby manage to open up the locked coffin, which contains the supposedly deceased mother of the original family. Stefan told Damon that he loved Elena and Damon said "so do I".