Warning: This story contains major spoilers from Thursday’s two-hour return ofThe Blacklist.

Read at your own risk!

But with Masha in danger, Red enlisted Kaplan’s help to protect her.

The Blacklist - Season 4

Credit: Will Hart/NBC

How did this all come together?

And what’s next?

EW turned to executive producerJon Bokenkampfor answers.

JON BOKENKAMP:No, not really.

It’s something that we found as we went along.

She was unexpected, and it was really fun to write for her.

As we got to know her better, it felt very organic.

Will Liz ever learn the truth that Kaplan had ties to her?

Yeah, I think she will.

What would that reunion look like?

Kaplan literally dug up all the bodies.

What exactly does she plan to do with them?

The 86 bodies are a bit of an appetizer for the meal to come.

I’m sure Reddington has killed far more than 86 people.

It has a huge ripple effect.

Is Katarina really dead?

I don’t know how to answer that.

Is she really dead?

She really walked off into the water and was never found.

So there’s that.

I don’t know.

I don’t know how to answer that anymore.

To be clear, Red was the man who kidnapped Masha when she was young?

Yes, that’s who we saw in the relationship and in that car.

Yes, that is true.

Red believes he’s Masha’s father, but will we get a definitive answer to that?

Yes, we will.

What can you tease of how this war between them will heat up?

Look, I think Kaplan is one of the best big bads that we’ve had.

I think she’s complex and is coming at Reddington from an emotional place.

There is nobody better to do that than Mr. Kaplan.

The ramifications of this fight, this war, are going to be catastrophic; they really are.

Will there be casualties?

Yes, there will be.

The Blacklistairs Thursdays at 10 p.m.