This week The Vampire Diaries put half its cast on the sidelines to focus on the arrival of the big, bad vampire (or werevamp) Klaus, and now it's time to bring it all together. There are only three episodes left this season, but it looks like the big fireworks of season 2 begin with the next episode, "The Last Day."

The title comes from the fact that Klaus announces that the Sacrifice is happening now, which means it's time for war. But will it go off without a hitch, or will Damon screw it up. Yeah, Damon's probably gonna screw it up.

Check out the extended trailer for this episode with a lot more Klaus and the return of Tyler.



The Vampire Diaries airs Thursday at 8pm on the CW.

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(Image and video courtesy of the CW)