The Vampire Diaries Season 2 Episode 19 can be watched on Thursday on April 22, 2011 at 8:00pm EDT on WPIX (CW). Title of the brand new episode is: Klaus. Synopsis of the episode is: The Salvatore brothers are furious when they discover Elena has defied them to make a new ally and take control of the plan to outmanoeuvre Klaus. Meanwhile, Stefan has his hands full trying to keep a confused and frightened Jenna safe. In a flashback to 1491, Katherine's introduction to Elijah and Klaus is revealed, along with the origin of the moonstone curse
