‘Who better to protect you in a bind than Klaus Mikaelson,’ Plec tells EW.

Well, fans are about to find out in FridaysVampire DiariesOriginalscrossover.

And I just went, Oh no,' Plec says with a laugh.

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Credit: Annette Brown/The CW

Once Carolines story checked out, they turned to Stefan.

[That] makes their first meeting a tiny bit awkward, she says.

However, an awkward run-in with Klaus is better than a deadly one.

Speaking to where Klaus and Stefan left their relationship, Plec says, Theyre not on horrifically evil terms.

Plec also promised a little visual callout to Klaus and Stefans time together in the 1920s during theVampire Diariesepisode.

An forOriginalsfans, expect Carolines appearance to hint at how the season will end.

It will ask a lot of questions, Plec says.

And yes, this episode takes place during a full moon.

As for Damon, things arent looking good when it comes to his relationship with Stefan.

The Vampire Diariesairs Fridays at 8 p.m.

ET followed byThe Originalsat 9 p.m.

ET, both on The CW.