The clip features a conversation between Paul Wesley as Stefan and Nina Dobrev as Elena as Rebekah (Claire Holt) looks on. The episode itself is called "Down The Rabbit Hole."
If you'd like to see the screencaps that were posted the other night, you can find them here... and, as always, you're all invited to check out our Vampire Diaries forum here at KSiteTV. The more posters, the better! But for now, enjoy that clip!