S1E6 Lost Girls
Stefan is forced to tell Elena he is a vampire, and he reveals his family's history to her and how his rivalry with Damon began. Meanwhile, Damon considers turning Vicki into a vampire and he threatens to harm Elena if Stefan doesn't return his ring that protects him from the sun. Also: the sheriff and mayor take action to protect Mystic Falls from further violence but it only leads to more of it.
First Air Date: 10/15/2009