Vampire Diaries Season 2, Episode 11 - By the Light of the Moon

With a full moon approaching, Caroline helps Tyler prepare for his inevitable transformation. Stefan and Katherine play mind games on each other, and Damon and Alaric become suspicious when a mysterious visitor named Jules shows up in Mystic Falls, looking for her missing friend, Mason. Elena is frustrated at Jeremy and her friends' excessive efforts to protect her. Bonnie and Luca team up to work on a spell, though both continue to keep secrets from each other. Finally, Elijah makes an unexpected appearance with an offer that could change everything.