Pilot Four months after a tragic car accident killed their parents, 17-year-old Elena Gilbert and her 15-year-old brother, Jeremy, are still adjusting to their new reality. Elena finds comfort with her best friend Bonnie, frenemy Caroline, and former boyfriend Matt, but Jeremy is trying to figure out why Matt's sister, Vicki, is suddenly rejecting him and hanging out with his rival, Tyler. As the school year begins, Elena and her friends are fascinated by a handsome and mysterious new student, Stefan Salvatore. Stefan and Elena are immediately drawn to one another, but Elena doesn't realize that Stefan is hiding a dark, deadly secret the fact that he's a vampire. At a nighttime bonfire party, Elena and Stefan are getting to know each other when chaos erupts after Vicki is attacked and left bleeding from a savage bite to the neck. Fearing that he knows who is responsible for the attack, Stefan finds that his older brother, Damon Salvatore, has returned to town. Now these two vampire brothers one good, one evil are at war for Elena's soul and for the souls of her friends, family and all the residents of Mystic Falls, Virginia.
Night Of The Comet As Mystic Falls prepares for a festival to celebrate the passing of a comet, Vicki is in the hospital recovering from Damon's attack. Stefan goes to the hospital and tries to use his abilities to make Vicki forget who attacked her, but his attempt is cut short when Matt arrives. Jeremy continues to struggle with his drug use and his feelings for Vicki. At a parent/teacher conference, Mr. Tanner warns a worried Aunt Jenna that Jeremy is in trouble and needs intervention. Elena goes to the Salvatore house to talk to Stefan, but finds Damon instead. Damon tells her about Stefan's past relationship with a girl named Katherine, and when Stefan arrives home, Elena is surprised that he seems upset to see her there. Meanwhile, Vicki's memory of the attack begins to come back to her and Damon used his power of persuasion to make her forget what happened. Meanwhile, Elena realizes she has to tell Stefan how she feels about him and the two share their first kiss as the comet lights up the sky over Mystic Falls. Finally, Damon set his sights on Caroline as his next victim.
Friday Night Bites Elena tries to ignore Bonnie's warnings about the disturbing vibes she got from Stefan. Tyler tries to embarrass Stefan by throwing a football at him, but Stefan effortlessly catches and passes the ball back, impressing everyone with his skill. Mr. Tanner reluctantly lets Stefan join the football team. Elena invites Stefan and Bonnie to dinner, hoping that the two will bond, but the evening is disrupted by the unexpected and unwelcome arrival of Damon and Caroline. Finally, the town is shocked by an act of violence.
Family Ties Elena asks Stefan to escort her to the town's annual Founder's Party. Vicki gets Tyler to ask her to the party, then accuses him of trying to hide their relationship from his family. Zach reveals a useful family secret to Stefan. At the party, Damon tells Elena a story about the Salvatore family's past, leaving Elena with questions that Stefan refuses to answer. Finally, Stefan takes action to get Damon out of his life for good.
You're Undead To Me Stefan is hopeful that his plan to get rid of Damon is working. Elena and Jenna are concerned about Jeremy's relationship with Vicki. Stefan decides to reveal parts of his past to Elena. At a fund-raising car wash, Bonnie is surprised by abilities she didn't know she possessed, and seeks advice from her grandmother. Finally, Elena hears a disturbing story about the Salvatore family from a stranger.
Lost Girls Elena demands that Stefan explain the frightening events that have been happening in Mystic Falls. In flashbacks, Stefan explains how his rivalry with Damon began. Back in the present, Damon impulsively takes control of Vicki's future, and a confused and frightened Vicki runs away. Finally, Sheriff Forbes and Mayor Lockwood take steps to protect the town.
Lost Girls As Vicki's behavior becomes more dangerous, Stefan tries to help her. Elena tries to convince Jeremy to stay away from Vicki. Caroline gives Bonnie a necklace she took from Damon to wear with her Halloween costume, and when Damon tries to take it back, he is surprised by Bonnie's abilities. Bonnie discusses the incident with Grams and learns more about her family's past. Trying to cheer Vicki up, Matt takes her to the high school's haunted house, but the evening soon takes a terrifying turn.
162 Candles On his birthday, Stefan is surprised by a visit from Lexi, one of his oldest friends. Still upset by the events at the Halloween haunted house, Elena does her best to stay away from Stefan, but Lexi gives her some unsolicited relationship advice. Elena and Jenna are surprised by a change in Jeremy's behavior. At Damon's insistence, Caroline tries to get his medallion back from Bonnie. Finally, Damon's offer to help Sheriff Forbes has sudden and tragic results.
History Repeating Jeremy gets a break from the mysterious new history teacher, Alaric Saltzman and introduces Alaric to Jenna. Bonnie is having terrifying dreams about one of her ancestors. Despite Elena's efforts to smooth things over, Bonnie and Caroline continue to argue over the medallion. When the girls hold a sance to help them decide what to do, the results are stranger than any of them expected. Matt comes to Caroline's aid when she needs a friend. Damon finally reveals to Stefan the stunning reason he has returned to Mystic Falls.
The Turning Point After reading the journal left by one of the Gilbert ancestors, Jeremy is inspired to return to his hobby of sketching fantasy creatures, a talent he had abandoned when his parents died. Much to the surprise of their friends, Matt and Caroline continue to hang out together. When Sheriff Forbes tells Damon there has been another attack, he offers to track down the killer and learns a startling piece of information about the town's founding families. Alaric steps in to help during an awkward scene with Jeremy, Tyler and Mayor Lockwood. Stefan and Elena come to a new understanding, but everything changes when Elena accidentally makes a devastating discovery.
Bloodlines Damon takes a trip to Georgia, where he surprises an old flame, Bree and enlists her help to figure out how to open the tomb. In the process, Damon comes face to face with someone who is determined to make him pay for past wrongs. Stefan opens up to Grams in his effort to help Bonnie overcome her fears and accept her powers. While researching his history paper in the public library, Jeremy meets a cute-but-geeky girl named Anna who has her own theories on the folklore of Mystic Falls. When Damon returns from Georgia, Stefan is waiting with news that will change their world.
Unpleasantville As Stefan and Damon try to figure out the identity of the new vampire in town, Stefan gives Elena jewelry filled with Vervain to protect her family and friends. Hurting for money, Matt takes a job at the Mystic Grill, where former high school football-star Ben, works as a bartender. Ben comes to Bonnie's aid when he notices Damon is bothering her. Damon and Stefan accompany Elena to a school dance with a 1950s' theme, where Alaric introduces himself to Damon.
Children Of The Damned Damon takes a trip to Georgia, where he surprises an old flame, Bree, and enlists her help to figure out how to open the tomb. In the process, Damon comes face to face with someone who is determined to make him pay for past wrongs. Stefan opens up to Grams in his effort to help Bonnie overcome her fears and accept her powers. While researching his history paper in the public library, Jeremy meets a cute-but-geeky girl named Anna who has her own theories on the folklore of Mystic Falls. When Damon returns from Georgia, Stefan is waiting with news that will change their world.
Fool Me Once Stefan helps Elena and Bonnie out of a dangerous situation. Jeremy asks Anna to a party in the woods, unaware that she has her own reasons for wanting to meet him there. When Stefan, Damon and Elena work with Bonnie and Grams to open the tomb, everyone is shocked by what they discover.
A Few Good Men Matt and Caroline are surprised by the sudden reappearance of Matt's mother Kelly. Stefan and Elena are worried about Damon's new attitude. Damon is asked by Sheriff Forbes to take part in a fund-raising bachelor auction. Alaric discovers shocking secrets from his own past. With help from Jenna and Stefan, Elena is determined to find out everything she can about her birth mother, but the truth may be more than she can handle.
There Goes The Neighborhood Anna brings a surprising guest along when she pays a visit to Damon. Elena and Stefan go on an awkward double date with Caroline and Matt, but Stefan and Matt find they have some common ground. Jenna reunites with her old friend Kelly, and Jeremy's relationship with Anna takes an unexpected direction.
Let The Right One In When Stefan and Damon make a dangerous new enemy, Stefan suddenly finds himself in a perilous situation. Damon and Elena try to convince Alaric to work with them to help Stefan. Matt is hopeful that his mom, Kelly, may be back to stay. After her car breaks down in a storm, Caroline make a horrific discovery that shocks everyone in town.
Under Control While Stefan struggles to control his new situation, Elena and Jeremy are surprised by a visit from their uncle, John Gilbert. Alaric has an awkward talk with Elena about Isobel. At a Founder's Day event, Stefan displays a rare party attitude and Damon's attempt to find out why Uncle John has returned to town takes an ugly turn. An incident at the party causes trouble between Matt and Tyler, and the relationship between Matt and his mother, Kelly, reaches a new low. Meanwhile, Elena's effort to comfort Jeremy falls short and he decides to take matters into his own hands.
Let The Right One In At the Founder's Day Gala, Elena and Caroline compete for the title of "Miss Mystic Falls" against other girls from town, including Tina Fell and Amber Bradley. Elena is happy to have Bonnie back in town, but Bonnie still has issues to work through. John Gilbert attempts to intimidate Damon, but his plan doesn't have the desired effect. Damon discovers that Stefan is hiding a dangerous secret that could impact everyone in town.
Blood Brothers While Stefan struggles to come to terms with his past, both he and Damon reveal parts of their history to Elena, until she finally learns the truth about how they became vampires. Pearl has an ugly confrontation with Johnathan Gilbert. Damon and Alaric try to find a mysterious invention before Johnathan does. The friendship and flirtation between Jeremy and Anna continues to grow.
Isobel Isobel returns to town and stuns Alaric with her attitude and her demands that he arrange a meeting with Elena. When mother and daughter finally meet, Isobel refuses to answer most of Elena's questions, but reveals that she will stop at nothing to find the mysterious invention Johnathan Gilbert has been searching for.
Founder's Day Founder's Day has finally arrived, and everyone is busy with last-minute preparations for floats and fireworks. Although Damon and Alaric do their best to stop him, Johnathan Gilbert sets a plan in motion that brings Founder's Day to an end amid chaos, destruction and death.