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

Summary: When approaching a full moon, Caroline Tyler helps you prepare for the transformation he is powerless to stop it. While Stefan and Katherine play mind games with each other, Damon and Alaric is suspected when a stranger named Jules appears in Mystic Falls searching for his missing friend, Mason. Elena is frustrated at the length of Jeremy and his friends have gone to keep her safe. Bonnie and Luca work together in a spell, while still keeping secrets from each other. Finally, Elijah makes an unexpected appearance with an offer that could change everything.