Warning: This story contains major spoilers from Wednesday’s episode ofThe Blacklist.Read at your own risk!

Why is she so important to him?

According to Lillian, Ian has been protecting her from her real father: Raymond Reddington.

The Blacklist - Season 5

Credit: Virginia Sherwood/NBC

Yup, she’s the long-lost Jennifer Reddington!What?You don’t remember who that is?

EW turned to executive producer Jon Bokenkamp to get the scoop.

ENTERTAINMENT WEEKLY: This woman says she’s the daughter of Raymond Reddington.

The Blacklist - Season 5

Virginia Sherwood/NBC

She certainly believes it’s true, but should we believe it’s the truth?

JON BOKENKAMP:It is most likely the truth.

Reddington was looking for her.

The Blacklist - Season 5

Virginia Sherwood/NBC

Reddington had no access, no way to contact her, and couldn’t find her.

So technically she would be Liz’s half-sister?

Yes, that’s right.

We know that Raymond Reddington is the father of Jennifer Reddington and the father of Elizabeth Keen.

We know that Jennifer’s mother is Naomi Hyland, who was Raymond Reddington’s wife.

Why has Ian Garvey been protecting Jennifer all these years?

He’s a U.S. And so the question I think is: What is his agenda?

So why has he not gone to the FBI?

Why has he not gone to the press?

Why hasn’t he leveraged Reddington in some incredibly powerful way?

She could be incredibly dangerous.

She knows potentially truths about who Raymond Reddington is.

She knows why he stepped out of her life and yet she’s been completely disconnected for years.

She’s sort of a grab bag of answers.

She hates the man.

She knows nothing about the fact that he’s working for the FBI, or does she?

And yet, how is Liz gonna juggle that?

What will Liz and Jennifer’s dynamic be like?

Well, it certainly won’t be normal, I’m sure of that.

I’m sure it will be incredibly dysfunctional and strangely dark and full of surprises.

What does Liz say to anybody?

Does she say something to Reddington?

Does she go to the FBI?

Does she keep this to herself?

Ian Garvey and Jennifer obviously have a long and deep history.

So, they find themselves in a potentially awkward family dynamic.

The Blacklistairs Wednesdays at 8 p.m.