Elena tries to cope with the extreme highs and lows that are part of becoming a vampire, as Stefan and Damon argue about what is best for her.
In the fourth season premiere, Elena awakens on the morning after the accident to find the thing she dreaded most has come true -
she died with vampire blood in her system and now must go through the terrible transition to become a vampire … or face certain
death. Stefan promises Elena that he and Bonnie will exhaust every possible way out of the situation, but Damon is furious with his
brother for letting Elena die in the first place. Bonnie pays a terrible price for her attempt to change Elena's fate, while Damon
takes out his frustration and rage on Matt. In a rare moment of empathy, Rebekah (recurring guest star CLAIRE HOLT) is deeply
touched by Stefan and Elena's devotion to one another. Finally, Pastor Young (guest star MICHAEL REILLY BURKE – Revenge) and the
Town Council members begin rounding up the vampires and their supporters, leading to an unexpected tragedy.
To protect his sister, Jeremy makes a decision that will change everything. Bonnie makes a secret deal with heartbreaking consequences.
Klaus acts on his intentions to leave town with Elena, but finds resistance from a surprising new enemy. Bonnie calls on Abby (recurring guest star PERSIA WHITE) to help her with a difficult spell. As events spiral out of control, Elena is determined to protect Caroline; Damon and Stefan enlist Tyler's help; and Bonnie and Jeremy take a terrifying risk to make sure her spell is effective. Plus, Damon and Stefan have a surprisingly candid conversation about the future.
The 1920s Decade Dance takes a deadly turn when Damon and Stefan realize they need Matt, Jeremy and Bonnie's help to undo a devastating spell.
Caroline is thrilled when Tyler returns to town, but Tyler soon suspects that something has been going on between Caroline and Klaus.
Stefan's emotional turmoil leads him to a dangerous confrontation with Klaus and, later, to a heartbreaking moment with Elena.
Damon is surprised to learn why Sage has returned, and pleased when she devises an unusual method to help him figure out what Rebekah is up to.
Present-day murders in Mystic Falls remind Damon of a similar crime spree a century earlier. Flashing back to 1912, he recalls a beautiful vampire.
After starting her day with a startling discovery of Damon?s latest indiscretion, Elena is frustrated to find that none of her friends agree with her on how they should react to the Original family?s internal power struggle. Once again caught up in the destiny of the Bennett witches, Bonnie and Abby (recurring guest star PERSIA WHITE) find themselves playing a part in a ritual to appease the spirits of nature. When Elijah (recurring guest star DANIEL GILLIES) gives Damon and Stefan a dangerous ultimatum that puts Elena in danger, they turn to Alaric and Meredith (recurring guest star TORREY DeVITTO) for help with a plan that leads them to a terrible choice.
Elena is invited to a formal ball at Klaus's mansion and discovers a horrifying and deadly plan. Who can she trust with her new information?
Sheriff Forbes delivers disturbing news to Alaric and Elena about a recent murder weapon. Caroline is heartbroken when she's unable to stop a tragedy.
Bonnie believes her recurring dreams about Klaus' coffins will tell her how he can be killed. The dreams also lead Bonnie to a reunion with her mother, Abby (recurring guest star PERSIA WHITE – Girlfriends), whom Bonnie hasn't seen for 15 years. At Abby's
remote farmhouse, Bonnie and Elena meet Jamie (guest star ROBERT RI'CHARD – One on One), the young man Abby took in years earlier. Bonnie's sudden appearance catches Abby off guard, but she does her best to explain the past. Tyler turns to an unexpected ally in his quest to regain his free will. Damon is intrigued by Alaric's new friend, Dr. Fell (recurring guest star TORREY DeVITTO), and
Klaus continues his bitter negotiations with Stefan over control of the coffins containing his family members.
Although Caroline is in no mood to celebrate her 18th birthday, Elena, Bonnie and Matt surprise her with a small party in an unusual location. Damon and Stefan disagree on the best way to handle Klaus, and a reckless Stefan decides to test his theory by taking things to dangerous extremes. Bonnie is concerned when Elena tells her about Jeremy's new plans. At a Founder's meeting, Alaric once again runs into Dr. Fell (recurring guest star TORREY DeVITTO), who is in the middle of an argument with her ex-boyfriend, the medical examiner (guest star DAVID COLIN SMITH). Tyler refuses to go along with Klaus' latest demand, and is surprised when Klaus seems to accept his decision.
Stefan has hidden the coffins containing the bodies of Klaus' family, and Klaus quickly turns to violence to convince Damon and Elena that no one will be safe until he finds Stefan and gets his family back. Tyler continues to make the most of his new abilities as a hybrid, but he has to face the disturbing consequences of his actions as well. After a terrifying incident, Elena and Alaric grow increasingly concerned about Jeremy's attitude and, ultimately, his safety. Alaric meets the beautiful Dr. Fell (recurring guest star TORREY DeVITTO – Pretty Little Liars), who is intrigued with his amazing ability to heal. While trying to strike a deal with Klaus, Elena delivers news that truly shocks him. Also in the episode, Internet personality JUSTINE EZARIK appears as a bartender.
On the night of the Homecoming dance, Rebekah (recurring guest star CLAIRE HOLT) opens up to Elena about why the evening is so important to her, leaving Elena with conflicting emotions. Caroline and Matt are both shocked at Tyler's behavior throughout the evening. The night takes a surreal turn when Klaus puts his latest plan into action. Determined to outsmart Klaus, Damon enters into a dangerous partnership, leading to a terrifying turn of events. The band MY MORNING JACKET performs in the party scenes.
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