Brave New World

Caroline has become a vampire and awakens in the hospital craving blood. Tyler catches Mason searching for a moonstone, which is a family heirloom. At the carnival, Damon compels a boy named Carter to pick a fight with Tyler to provoke one of Tyler's bursts of anger. Mason breaks up the fight using his supernatural abilities, proving that he is a werewolf. Caroline confronts Damon about his abusive treatment, and he realizes that she is a vampire. He alerts Elena and Stefan, while a ravenous Caroline drains Carter. Stefan promises Caroline he will guide her journey as a vampire. Tyler retrieves the moonstone Mason has been seeking. Matt notices Caroline's erratic behavior but admits that he loves her.

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