The other concern for the FBI is curing Jane.
Sure, she’s back to being Jane, but the ZIP poisoning is still doing its damage.
The doctor working on the project, Dr. Roga, called for it to be canceled.

Credit: NBC
He assures her that it was all in the past and that the criminal parties have been dealt with.
When she leaves, he makes a call.
He wants Roga and her assistant taken out.
Back in the present day, the team is working to find a cure for the ZIP poisoning.
Jane remembers that Shepherd told Remi about someone by the name of Kallisto whom Roman was tracking down.
Unfortunately, they have to tell Jane and Weller the bad news that she died two years ago.
Faced with the thought of losing Jane after just getting her back, Weller’s having trouble composing himself.
So, it’s up to Jane to keep him focused.
There was never any talking, but it was her way of checking up on her son.
Apparently, they’ve been tracing his phone for two years?
She refuses again and again, finally saying she wants to talk to Keaton.
That suggests she’s still working for the CIA, but Reade has some bad news for her.
She has no choice.
Backed into a corner, Zapata finally explains herself.
She says she’s been deep undercover for the CIA all along.
Claudia represented another bump in the road.
So, Claudia “sacrificed” herself so that Zapata could get even closer to Madeline.
Once she’s done with that, and the FBI takes down Madeline, he’s done with her.
At the house in the woods, Weller and Patterson do find Roga.
After initially pulling a gun on them, she brings them inside once she learns who they are.
She shows them her whole scientific setup, which it turns out was funded by Roman.
That’s not the only surprising news though: It turns out she found a cure for ZIP.
The good news can’t last, though.
The Stanton cells aren’t the only thing they’ll be looking for, though.
When Zapata shows up to her meeting in Toronto, she’s kidnapped by two men.
Jane’s life hangs in the balance, and now Zapata’s does too.