Thank you, Damon!

Ever since Katherine popped up in Chicago, we've been wondering what is going on with Nina Dobrev's mysterious non-Elena character. What is her agenda? Her end game? Her goal with that necklace?

On this week's episode - officially previewed HERE - Damon will pull over during the pair's road trip and wonder the same thing. Watch him grill Katherine in the following clip from "The Reckoning" and, of course, return to TV Fanatic soon after this episode concludes for a detailed review:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.