Elena turns into a vampire in the first episode of the fourth season of The Vampire Diaries, which is titled "Growing Pains". In this episode, Elena wakes up the morning after the car accident in the season three finale to discover that she died with Damons blood in her system and must now drink human blood to turn into a vampire or she will die. Stefan promises Elena that he and Bonnie will try every possible solution to fix the situation, but Damon is furious at his brother for allowing Elena to die in the first place.