Here's the summaries for episodes of season 4.
401: Growing Pains
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 is deeply touched door Stefan and Elena’s devotion to one another. Finally, Pastor Young and the Town Council members begin rounding up the vampires and their supporters, leading to an unexpected tragedy.
Elena tries to cope with the extreme highs and lows that are part of becoming a vampire, and Stefan and Damon almost come to blows while arguing about what is best for her. Damon decides to help Elena in his own way and asks her not to tell Stefan. A stranger, Connor Jordan, arrives in town and begins questioning Sheriff Forbes and Mayor Lockwood. Connor’s actions quickly convince Stefan that they are dealing with a dangerous vampire hunter. Jeremy and Matt are surprised to see a girl they used to know April, has returned to town and is enrolling at Mystic Falls High. At a town gathering, Elena comes close to losing control until Caroline steps in to help her. Finally, Damon confides his feelings to an unexpected friend.
403: The Rager
Connor continues his zoek to uncover the secrets of Mystic Falls and tries to convince Jeremy to work with him. With Dr. Fell’s help, Damon and Klaus vraag Connor, but the confrontation takes a lethal turn. Trying to keep her new life as normal as possible, Elena is determined to continue her senior jaar at Mystic Falls High with support from Matt and Caroline. Rebekah’s arrival at school makes it difficult for Elena to control her anger, but she learns that confronting Rebekah can be extremely dangerous. Later, Rebekah realizes how alone she is, and reaches out to April. Stefan takes Elena on a thrilling motorcycle ride in an effort to toon her that life can still be fun. Tyler gets a surprise visit from Hayley, a werewolf who helped him through the ordeal of breaking his sire-bond to Klaus. Concerned about Elena, as well as his own emotions, Stefan turns to a sympathetic Caroline for advice.
404: The Five
Damon goes with Elena and Bonnie to visit Whitmore College, where Professor Shane is taking over the Occult Studies classes formerly taught door Bonnie’s grandmother. At a fraternity costume party, Damon takes advantage of the wild scene to give Elena a lesson in choosing a victim. Rebekah’s attempt to buy Matt’s forgiveness falls flat, but she is intrigued door unexpected news from Klaus. When Stefan vragen Klaus about Connor’s motives, Klaus reveals a long-ago encounter with a powerful group of vampire hunters, but it’s Rebekah who delivers the information that stuns Stefan.
First appearance of Dean (Blake Hood).
First appearance of Kimberley (Alyssa Diaz).
Another Miss Mystic Falls pageant with a moment which mirrors a moment in season 1. Caroline and Elena will clash. Klaroline scenes.
Gabrielle Douglas will guest star.
Hayley appears again.
First appearance of Nandi.