Ethan, Benny, and Rory summon a Demon that takes over Sarah's body turning her into a crazy goth vampire that loves human blood.

Jesse is awakened from the dead and returns from the grave to get Sarah back but she refuses. Ethan and Benny prepare to destroy Jesse again. On the night of their high school dance, they arm themselves with weapons and try to fight off Jesse but Jesse bites Ethan.Then Jesse runs away. Sarah has a choice: save Ethan (which will in turn her into a full vampire) or let him become a fledgling. Sarah saves Ethan by sucking the venom out of his blood. Back at home, Benny's grandmother tells an injured and resting Ethan that he is still fully human. Ethan however feels terrible about what Sarah had to do--now she has no hope of ever becoming human again. Outside, Erica lets Sarah know that they are now best friends forever (literally) and that she will always be there for Sarah. Sarah seemingly accepts what she is and she, Erica and Rory fly away to their after-party.