Warning: This story contains major spoilers from Wednesdays episode ofBlindspot.

Read at your own risk.

EW turned to executive producer Martin Gero to get the scoop on the upcoming finale.

Blindspot - Season 2

Credit: David Giesbrecht/NBC

ENTERTAINMENT WEEKLY: We know Shepherd seems to feel victorious after this supposed failure.

So shes got a lot of nuclear material.

Id be real nervous.

There are people who we dont recognize in that bunker.

Could they be working for her?They could be.

Once Phase 2 actually happens, what does that mean for Janes usefulness to the FBI?

Are there still other tattoos on her body to be solved?Youll have to keep watching.

Youre asking some finale questions.

[Laughs]

Talk about Romans decision to side with Shepherd.

Is he fully with her or is there a part of him thats torn?I think hes torn.

Hes furious at Jane and is remembering why she erased his memory, which is even worse.

Everything filtered through that lens can seem like a manipulation even though we know its genuine.

So its really turned his head around in a hard way for him.

Hes pretty angry at Jane.

I dont believe hes undercover.

Can you tease the ultimate showdown between Roman and Shepherd vs. Jane?Real satisfying.

Its a huge episode.

Its truly one of the biggest episodes that weve ever done plot and emotion-wise, as well as scope.

It takes place all over.

We definitely see a Shepherd/Jane standoff and a Shepherd/Roman standoff Weller gets a moment.

Its all payoff, the next episode is all payoff.

I think everyone will be very, very happy on all counts.

The finale is out of this world.

One of the coolest things about the finale has been planted since the first episode.

Why did Pellington have to die?Well, itsBlindspotand people die onBlindspot.

Weve been working toward the invasion on the FBI for about a year and a half now.

We love that image and had that in our back pocket.

Then, as this season came together, we realized it would be a great penultimate episode.

It needed to have weight and cost and feel like this was Phase 2.

A character has to die for that kind of weight, in our opinion.

We had talked about trying to introduce some newer characters toward the back half of the season.

What can you say about the character shes playing?Shes going to come in as Pellingtons interim replacement.

What can you tease of your finale cliffhanger?Its our best yet.

The final cliffhanger has been something weve been talking about for a very long time.

All you want for a cliffhanger to do is have the audience go, Oh no!

I have to wait a few months before I know.

You want this reaction: Ohhhhhh noooooo!

It does that, I think.

Blindspots season finale airs Wednesday at 8 p.m.