The episode would go back to the past to explain how one of the oldest vampires in the world will come after Elena and her loved ones.
Things got so big in the next episode of "The Vampire Diaries". Elena puts herself in a dangerous position as she searches for the truth about Katherine's past and what her own future may hold. The vampire offers her a taste of her blood in return of immortality.
Knowing that Stefan would never agree to her plan, Elena swears Caroline to secrecy. Damon uses a new-found confidant to help him try to discover the real purpose and power of the moonstone. Jeremy and Bonnie meet Luka (guest star Bryton James), a new student with a surprising family history.
"Katerina" airs November 11 on The CW.
On another news, The CW has just announced that there will be another week-long marathon of "The Vampire Diaries". The second season will air the first episode on December 13 at 8/7c and continue airing two episodes per night until December 17.