Senior year is finally here, but instead of having the time of her life, Elena faces her worst nightmare, struggling with her transformation from human to vampire. As Damon mentors Elena into a supernatural life, their repressed passions explode, causing Stefan to undertake a quest to restore humanity to the girl he adores. As Elena quenches her newfound thirst for blood, and her friends race to find a vampire curse and a cure, the world around them falls prey to a host of sinister forces.