With help from Elena and Bonnie, Alaric tries to decipher the meaning behind his recent discovery Elena and Rebekah engage in a mean-girl power struggle, until Rebekah finally reveals some of her family's ancient secrets and the violent past she shares with Klaus and Elijah. Damon tries a reckless new approach to make a breakthrough with Stefan, and they're both surprised by an unlikely ally.
Elenco: Paul Wesley , Ian Somerhalder , Kat Graham , Candice King , Zach Roerig , Matthew Davis , Michael Malarkey , Michael Trevino , Susan Walters , Zach Roerig , Bianca Lawson , Candice Accola , Claire Holt , Daniel Gillies , Katerina Graham , Matthew Davis , Rebekah , Sara Canning , Steven R. McQueen , Torrey DeVitto .