Video Previews of The Vampire Diaries Episode 17 – Know Thy Enemy

We’re less than a week away from the return of “The Vampire Diaries” on The CW, and to celebrate, the network has released an extended video preview of the upcoming episode entitled “Know Thy Enemy” to go along with the regular preview we’ve already seen. Just beware – Everything you know is about to change.

Episode 17 “Know Thy Enemy” (4/7/11 Air Date):
HIDE IN PLAIN SIGHT — Elena (Nina Dobrev) and Alaric (Matt Davis) both lash out at John (guest star David Anders) when Isobel’s (guest star Mia Kirshner) unexpected arrival leaves Jenna (Sara Canning) devastated. Bonnie (Katerina Graham) works with Damon (Ian Somerhalder) and Jeremy (Steven R. McQueen) to find the spell they’ll need to harness her ancestors’ power.

A heartbroken Caroline (Candice Accola) doesn’t know what to do about Matt (Zach Roerig). Stefan (Paul Wesley) and Damon realize they have a new secret weapon.

Wendey Stanzler directed the episode written by Mike Daniels.

For more visit the official “The Vampire Diaries” website via the link below.