Elena, Bonnie and Matt surprise Caroline with a small party for her 18th birthday. Tyler refuses to go along with Klaus's latest demand.
Klaus uses violence to convince Damon and Elena that no one will be safe until he finds Stefan and gets his family back.
On the night of the homecoming dance, Rebekah tells Elena why the evening is so important to her, leaving Elena with conflicting emotions.
Elena and Rebekah engage in a power struggle, until Rebekah reveals some of her family's ancient secrets and the violent past she shares with Klaus.
Preparing to celebrate Illumination Night, Mystic Falls is invaded by spirits. After an encounter with an angry spirit, Damon asks Bonnie for help.
As senior year begins, Elena, Caroline, Bonnie and Matt are reeling from recent events, while Stefan carries out his latest assignment from Klaus.
A traditional Senior Prank Night before the school year begins takes a deadly turn.
A frustrating new enemy pushes Damon over the edge, and his outburst has lasting consequences. Bonnie's strange encounter affects everyone.
Stefan reunites with a vampire from decades earlier. In a flashback to the 1920s, he comes face-to-face with a shocking chapter from his wild past.
Damon and Alaric reluctantly go along with Elena's new strategy to find Stefan, leading Damon into a dangerous fight with an unexpected enemy.
It's Elena's 18th birthday, and as she searches for Stefan, Damon tries to keep her from doing anything that might draw Klaus's attention.
The CW's number-one series continues for another season of epic romance, suspense and a bloody good thrill ride. Based on the best-selling book series, THE VAMPIRE DIARIES is the story of two vampire brothers, obsessed with the same gorgeous girl, who are battling to control the fate of an entire town.
More than one life hangs in the balance as the consequences of the sacrifice ritual play out to a horrifying conclusion.
As the full moon arrives, Elena prepares for whatever Klaus has planned and Tyler faces his second transformation.
Damon is willing to go to great lengths to prevent Elena from being a victim of Klaus's plan to break the curse, putting him at odds with Stefan.
Klaus is revealed and Elena learns shocking news about his motives. Plus, flashbacks to 1491 reveal Katherine's introduction to Elijah and Klaus.