TV Guide's William Keck has special first look and also interviews with Nina and Julie Plec about what will happening in episode 9 of our favorite TV series. The 9th episode will airing on November, 2010 and will expose the history of Katherine Pierce aka Katerina Petrova.
Nina Dobrev (Elena/Katherine/Katerina) says we'll find out on the November 11 episode when the action flashes back to 1490s Bulgaria.
"We find out how she became a vampire and what led her to become the person she is today — a selfish, maniacal woman who only looks out for herself," says Nina, who was born in Bulgaria and speaks Katherine's native tongue. How she's turned is a big secret, as is the identity of a new menace we'll meet from the same era, who will journey to present-day Mystic Falls.
"This villain has ties to the deep, deep past of the vampire legend," teases executive producer Julie Plec. "And then in our last episode before the holidays [December 9], we'll finally see poor Tyler Lockwood's torturous transformation into a werewolf."
Source : TV Guide