Original subtitles

There's been a chemical weapon attack in Chicago.

Terrorism likely.

Set up for decon.

Your heart rate's elevated. Do you feel lightheaded at all?

I got a survivor!

Wait, she's pregnant.

I need you to stay in your vehicle.

I don't get what kind of chemical agent

would elicit such an extreme response.

Hey, easy. You're in an ambulance.

Novak, you've got blood on your face.

You gotta decon yourself.

We were tracking a suspected narco courier.

So is it just a coincidence

that your mule was on that same flight?

I don't think so.

My gut's telling me something else is going on.

Excuse me, sir.

Drop that weapon!

Move! Move! Get out of the way!

Get out of the way. Stop!

Whoa.

Hailey, easy. Take it easy. - Go.

- Stop! - You gotta go!

Hailey! Hailey, you got a head wound.

I'm not going anywhere. - Jay, he's getting away.

You gotta-- - Hailey, stop! Stop.

I'm fine.

I just need a second.

It's good to see you.

What's the matter?

Chest feels tight.

It's like a--

it's like I can't get a full breath.

You know?

Pull over.

I'll--I'll take the wheel.

Capp?

Capp, wh--what--

And you're sure they weren't the gloves

he was wearing in the morgue? - No.

These were flesh-colored, more like a second skin.

They had a logo on them.

Two diamonds with a word underneath.

Uh, I think it started with an A and an E.

- Wait, Aepix? - I don't know.

It could be. What's Aepix?

Aepix Biomedical Technologies.

Do these look like the gloves?

Yes, exactly.

- What are they? - They're compression gloves.

They're prescribed and custom-fitted

to manage symptoms from

connective tissue disorders, burns.

Prescribed means traceable.

Yeah, I'll have my team contact Aepix,

pull every order filled in Chicago.

I just don't get it.

Why was he digging around inside of--what's his name?

Omar Bengoa.

Bengoa specialized in body packing.

Are you familiar?

Uh, yeah, we've had some cases in the ED.

Uh, mules ingesting pellets of drugs

to avoid detection at the border.

He was paid triple his normal amount to have

two capsules implanted.

Implanted? Surgically?

It lowers the risk of rupture.

Maybe that's it.

Burst inside of him, killing everyone on board,

A cabin pressure change could have compromised the seal.

So the plane wasn't an attack.

It was an accident.

I mean, he came here looking for the capsules

to see if one of them survived.

- What's her status? - 72 now.

She's brady. 48 and falling.

Baby's got a strong heartbeat.

Hey, you've got a fighter in there.

- What's her blood pressure? - I can't get a read.

Weak radial. - Ambo 61 to Main.

Our patient is crashing.

We have to get her inside the hospital.

Uh, try moving her on her left side

to relieve aortocaval compression.

Copy, 61. The message is being relayed.

Continue to stand by.

She's down!

No pulse!

Push epi and mark time of arrest.

11:41.

We've only got four minutes. If we don't get ROSC--

The baby needs to come out.

It's our only shot at saving them both.

Ambo 61 to Main, our patient is in cardiac arrest.

If you won't let us inside, we need an OB to the ambo now!

Ma'am, return to your vehicle.

We've got a woman in the back

who's gonna die without my help!

Ma'am, hold.

Let me radio our incident command for clearance.

Ma'am!

Every cadaver was X-rayed upon intake.

I just had Omar Bengoa's scans uploaded.

These white specks are fragments of the capsule

that's expected to have ruptured.

And here's the second capsule intact.

- Were you able to see if he-- - Yes.

One of our pathologists just did a full sweep

of Bengoa's abdominal cavity.

The second capsule is gone.

He got out with it.

If this guy's willing to risk getting apprehended, then--

Knowing he's facing almost 200 counts of homicide

if he's caught, then whatever he's planning,

it's already in motion.

Yeah, he needed his chemical weapon now.

My gut's been telling me from the beginning this is local.

He had it transported where he's gonna use it.

Man, am I glad to see you, Dr. Asher!

How long has she been down?

Uh, 3 minutes and 49 seconds.

Okay, don't stop compressions.

Once baby's out, Mom's circulation

should hopefully improve.

Four minutes.

Do you have Pitocin on board?

No, but we've got TXA. I'll prep it.

Good.

Uterus exposed.

Uterine incision.

Okay, here baby comes.

Hi, baby girl.

It's okay.

You are okay.

Yes, you are.

Okay, try to remove as much amniotic fluid as possible,

and check for signs of exposure.

Copy.

Here you go.

All right. Airway's clear.

Pupils equal and reactive.

Good, strong cry. Good tone.

No immediate signs of exposure.

She's hemorrhaging. Give her a gram of TXA.

TXA is on board.

Pupils fixed and dilated.

Come on.

Come on.

Come on.

She's gone, Lizzie.

Right, use sealant tape on all the seams.

We can't have any cracks.

Hey, Crystal, as soon as you're done,

I need some arrows on the ground.

One-way flow only.

In through donning, out through doffing.

No crossover.

Make sure we have enough O2 masks and cannulas.

Hey, be sure to stock extra filters for the pappers, okay?

Come on, people, let's pick up the pace!

We got folks waiting to come in.

All patients in ICU have been transferred to other floors.

The rooms are being converted to negative pressure

as we speak. - Decon flow?

Established. Separate ingress and egress.

Good. Anyone who was in that ambulance

goes through secondary decon before they step foot anywhere--

You let Hannah go out there?

You let Hannah go out there?

Well, the situation escalated, Dean.

- Yeah? - A C-section was required.

And Dr. Asher was adamant. - Yeah, I don't care, Sharon!

Your job is to protect your doctors,

especially the ones who are not protecting themselves!

Dean, nobody was gonna keep Hannah out of that ambo.

Nobody, not even you.

You know that, right?

It's a terrible situation. Everybody's doing their best.

Maybe just take a breath, pal.

Yes, sir.

I'll contact the Northern District AUSA

and have them fast-track the paperwork.

Yep.

Conway signed off on Intelligence

being deputized as TFOs,

so Intelligence is gonna take the lead

on the local investigation.

Well, I'd really like to check you out at Med

and rule out a concussion. - I'm good.

If you develop a headache or start vomiting--

I'll make sure to bring her in right away.

I'm okay. Thank you.

Uh, I found a picture of you and Omar Bengoa

in his apartment, the two of you together.

It looked like it was taken from surveillance footage.

For insurance, I imagine, in case I didn't play ball.

- Is he your CI? - Yeah.

Do you know anything about who hired him?

We had just started working together.

I don't think he trusted me yet,

hence the photo.

My team was working with Canadian counternarcotics.

We were interdicting border meth traffic,

and Omar thought he was moving a new precursor for--

Methyl-propiophenoxide.

How do you know?

Title 3s.

I heard chatter on one of the lines.

Military operative got burned in Bolivia.

Pulled threads. They all led back to Omar.

You were trying to protect me.

Hailey,

there were so many times that I wanted to reach out--

I-- - No. No, not here.

Later.

Doris said you might need some help.

Yeah, organizing PPE.

We have surgical masks and N95s in this bin

and face shields laid flat so they don't crack.

Goggles are separate from face shields?

- Correct. - Okay.

I heard Novak, Violet, and Hannah

are in isolation?

What happened in the ambo?

I don't know the details yet,

but since they don't know what this chemical is,

let alone how it spreads, it's--

Well, have you talked to Novak?

Uh, no.

Oh, I just thought you might have checked in.

Oh, we, uh,

were just kind of a passing fling,

so we ended things a few days ago.

Oh. I'm really sorry.

It's okay.

I'm gonna get these upstairs.

Chief! Overhaul's done.

81's heading back. - Copy that.

Any idea where Squad's posted?

I haven't seen them, actually.

I don't know.

Lots of companies cycling through,

but they weren't reassigned or diverted.

- Squad, what's your location? - What's going on?

They were just a few minutes behind.

Squad, come in!

Battalion 25 to Main, requesting status

and most recent on Squad 3.

Squad 3's AVL last pinged at Kingsbury Street

between Evergreen and Halstead.

That's en route to the morgue.

Yeah. All right.

We'll start heading that way. Let's go.

Dr. Lenox!

We could use your help!

Emergency! Emergency!

Truck 81 responding to Kingsbury Street

for a wellness check on Squad 3.

Send ambo and CPD to that location now!

Copy, Battalion 25.

Emergency traffic acknowledged.

Ambulance and CPD en route.

It's Briggs.

This is Kidd.

What? When?

What? What is it?

Macy and Holt are showing signs of respiratory distress.

They're being taken to Med. - Secondary exposure.

Cruz and Capp, Holt, and Macy,

they were the first ones in the airplane

before we knew it was a hazmat.

Truck 81 to Main, tell the responding ambo

to prep for hazmat.

Hey, wait, wait. Hold up.

You see that? There.

Truck 81 to Main, we've located Squad 3.

They are not moving. Checking on them now.

Let Dr. Lenox run point.

Unconscious but still breathing.

Hey!

We got two firefighters down!

They don't have much time. - Whoa!

Wait for the paramedics. - Those are my guys in there!

Kelly, if that agent is still off gassing,

we're not protected.

What we can confirm is devastating.

187 people are dead, making this the deadliest...

188 now.

Wait, the pregnant passenger?

Didn't survive.

Macy and Holt are through decon.

Cruz and Capp just hit the bay.

Oh, God.

Capp.

You have to let us in! You have to let us in!

Capp.

Hey, Capp's right behind us.

Just breathe. We're almost there.

Capp's through decon. Trini's got him.

All right, it's go time. You're on Capp.

Howard and I will take Cruz. - Got it.

He was found down at the scene,

loaded with atropine and 2-PAM.

Regained consciousness in the ambo.

Heart rate, BP improving.

Okay, that's what we wanna see, Capp.

Well, when are we gonna hear something?

Hey, listen.

Soon, okay?

They're not gonna keep us hanging.

Look, I just don't--

I don't get how they were exposed.

They were in full bunker gear.

SCBA protects your lungs, not your skin.

I need to take a walk.

You want me to come with you?

No, I just-- I need some fresh air.

Text me when we get an update, all right?

Of course.

It should have been me on that plane.

Then what?

I don't know.

Feels wrong to be out here.

Capp and Cruz back there.

Herrmann, how's Joe doing?

Hey, Chloe.

Doc said she'll be out soon.

You know, give us an update, okay, guys?

Hey.

I tried to drop the boys off at the neighbors,

but no one was home, and I just didn't wanna wait.

Of course.

Is my dad gonna be okay?

Of course, honey.

- Your pop's tough as nails. - Yeah.

Hey, your dad's gonna be okay.

He's a big, strong guy.

Okay. It's gonna be all right.

Hey.

That's Macy's mom.

Hey, Pamela. Hi.

How's Macy?

We should be getting an update any minute now.

I don't understand.

Why was she on that plane without proper gear?

Pamela, I am so sorry.

I can't-- I can't imagine how scared

you must be feeling right now. I--

No. You can't.

Laura, let's call RT and get him some racemic epi.

No, Joe, keep that on for now, okay?

Please, tell Chloe

and the boys how much I love them.

Yeah, cut it out. You're not going anywhere.

All right, give atropine every two hours,

and keep an eye on his respiratory status.

Hannah's gonna be fine.

That woman she was treating

went through decon at the scene,

and Hannah was in full hazmat.

Here, let me just--

There you go.

That should help you breathe a little easier.

Are you gonna have to intubate me?

Only if your oxygen saturation drops below 85.

Is my mom here yet?

Yeah, I'm told she's just arrived.

She's not happy about me being a firefighter.

This is not gonna help my case.

I'm sure she's just gonna be glad you're okay.

All right, folks, this is our guy.

Male, white, 30s to 40s, about 5'8", medium build.

May be wearing compression gloves.

All right, Kim, where are we at with the supplier?

Aepix Biomedical Technology lawyered up.

HIPAA wall.

They won't release patient records without a warrant.

All right, so we'll get one.

Anyone in our system tied to these gloves?

No, sir, these gloves are prescribed

for all kinds of conditions, so we're working

with a big pool. - Well, keep digging.

Prioritize violent offenders recently released.

Look, any prick out there with a documented

vendetta against a large group of people.

This chemical is built for density.

Took out 188 people in a matter of minutes.

What's the status on Bengoa's phone?

He was supposed to get a location when he landed

to have the capsules removed.

FBI CART's cracking it now.

I'll press them for a timeline.

Well, this isn't the reunion any of us hoped for,

but it's good to have you two back.

Thanks, Detective.

Doctor Charles.

Appreciate you guys' patience, Chief.

Thanks.

So I've just been updated by the medical team,

and I'm happy to report that everybody is stable

and, dare I say, even improving.

Still a lot we don't know, and the next couple hours

are crucial, but needless to say,

it's an encouraging trend.

What about Novak and Violet and Dr. Asher?

Everybody's under close observation,

and as of yet, there's no signs of exposure.

Can I please see my daughter?

Yes, can we see Joe?

I hope you can understand that,

out of an abundance of caution,

the doctors just aren't comfortable

letting anybody back there, but I'm happy to take messages.

Thank you, Doctor.

Of course.

Excuse me.

Macy's baby blanket.

She'd hate me showing this to anyone,

especially around her colleagues,

but it always makes her feel better.

I am going to make sure she gets this.

I promise you that.

Thank you.

Where was Bengoa supposed to land?

Coordinates put him here, right smack

in the middle of the parking lot.

Maybe this is just a grab-and-go spot

and they were gonna take him somewhere nearby

to have the capsules removed.

Don't some pet stores offer vet services?

Yeah, which means exam rooms, instruments, anesthesia.

Basically everything you'd need to remove

a foreign object from someone's body?

Sure.

Hey. Detective Burgess, Chicago PD.

We're gonna need to speak to everybody

who's working here today. - Let me grab my boss.

Just one second. - Thank you.

Hey, I'm gonna need to talk to--

5021 Eddie, we got a silver Lexus

heading southbound on Clybourn!

Illinois plates. Victor 36...

- Young 0-4-7. - Young 0-4-7.

We're en route!

Maintaining southbound on Franklin.

Offender's headed to the bridge.

10-4, 5021 Eddie.

- Hailey, your nine o'clock. - I see it.

You wanna drive? - You're good.

Still southbound on Franklin.

Offender is driving erratic, high rate of speed.

This guy's gonna kill someone.

Get ahead of this guy. Leapfrog him.

You okay for a PIT? You got room.

- Yep. - 1820 requesting PIT.

- PIT denied. - Damn it!

All units, hold your position.

Spike units, deploy.

Offender avoided the spike strip.

Turning left into a corridor at 18th!

Offender crashed! Vehicle overturned.

Roll an ambo to the railyard off 18th.

Whoa, whoa, whoa!

He may be armed.

I'll get these people back and hold the perimeter.

FBI! Let me see your hands!

Chicago PD! Back up! Back up now!

Stay still! Let me see those hands now!

Let's cut him out. - Wait, wait, wait. Hold on.

Answer some questions first.

Who hired you? - I'm not saying anything.

Hailey, you know this thing's gonna blow any second, right?

- Huh. - Here's the deal.

You want answers? You get me out.

You're in no position to be making deals.

Oh, you think the dude told me his name?

- How'd he contact you? - Telegram. It's all encrypted.

You're not giving me anything I can use here, man.

Don't look at me. It's her call.

You know what happens if this line hits a vapor?

All right, it's fine.

When he dropped the cash, I saw his face.

Describe it.

Scars, deep ones, like--

like someone tried to peel him open.

You want more?

Get me the hell out of here! - All right.

We actually gotta move now. - All right.

Hey, he's here.

Hey.

Okay.

Observation window is complete.

We're moving you out of isolation.

Is there any news on the case?

Have they found the guy that escaped the morgue?

I haven't heard anything.

Ready?

You'll exit through decon, and we'll give you

clean scrubs to change into.

Can we see Cruz and Capp first?

Unfortunately, only medical personnel

are allowed in treatment rooms for right now.

How are they doing?

They're holding steady. No change.

You coming?

Okay, when you untie the gowns,

make sure to pull them away

from your body inside out. Slippers stay on.

Okay.

Whoa, Lizzie?

- Lizzie? - Hey. Hey, hey. Hey.

Oh, my God. Oh, my God, Lizzie.

Oh, my God. Lizzie. - Whoa. Whoa, whoa, whoa.

Lizzie.

Hey, stabilize her head.

Go grab whoever you can.

Tell them to bring me atropine, 2-PAM, and Ativan,

all right? - Yeah.

Lizzie, hey, it's okay. I got you.

I got you. I got you.

What's going on out there?

You know, I'm not quite sure.

Macy, I'm Dr. Charles.

And your mom, she wanted you to have this.

I can't believe she brought my baby blanket.

Hey, you know, when our kids are hurting

and we can't be with them,

the kind of move we make, right?

Is she really worried?

She's your mom, you know?

Occupational hazard.

It's the joy and the curse of parenting.

Dr. Charles, do you know what happened to the pregnant woman

they pulled from the plane?

Evy White was her name.

- Was. - Yeah.

I'm afraid that she didn't make it.

I thought I heard something.

On the plane-- I thought I heard a noise.

I froze.

I couldn't move.

You must have been terrified.

You all right?

I can't swallow.

What's going on?

A little help in here!

A little help in L2! Little help?

I need help in L2, stat!

Dr. Ripley is on his way. He's just suiting back up.

Can't wait for him. Gotta intubate her.

20 etomidate, 50 of roc. - On it.

What happened? How did her sats tank so fast?

Her jaw is clenched, Mitch. I can't get in.

I got it. I got it.

Sats down to 50. Heart rate's 30.

- 10 blade. I gotta cric her. - Copy.

Hey. Uh...

Trini told me I could help myself.

- Of course you can. - Okay.

I just...

What?

What is it?

Macy didn't make it.

What?

But I thought--

I thought she was improving. - She was.

All of a sudden, she seemed to be having

a little difficulty breathing.

And I swear to you, not 20 seconds later,

she was gone.

I mean, whatever this stuff is,

when it decides to make its move,

it moves very, very quickly.

She was my--

my first girl from Girls on Fire

to graduate from the Fire Academy.

She wouldn't be a firefighter if it weren't for me.

You know that that doesn't make you responsible

for what happened, right?

Oh, you try to tell her mom that.

There is no way her mother would be blaming you for this.

She does.

I know she does.

Yeah, well, guess what?

That doesn't make it true.

Oh.

Ms. Goodwin, we're hearing reports

that a first responder has already died.

Can you confirm? - No comment at this time.

There he is.

But Ms. Goodwin, if there is an ongoing concern,

the public needs to know.

We'll issue a statement shortly.

Right now, we're actively treating patients.

- Well, but-- - Excuse us. Excuse us.

Paramedic Novak's exposure is confounding,

but I suspect it resulted from the blood spray

in the ambulance.

Has there been any change in Paramedic Mikami

or Dr. Asher's status? - No, still asymptomatic.

We've extended their observation window

and are keeping them in isolation.

We also ran repeat labs on

the infant delivered in the ambo.

Still negative. - Good.

But we need to reassess our treatment protocol.

I mean, the atropine and 2-PAM just aren't enough.

Macy's death made that painfully clear.

This chemical's toxidrome appears to have

a dangerous and deadly tipping point.

Is there any way to prevent anyone else from

reaching that tipping point?

Well, I was hopeful that the mass spectrometry

results would give us something actionable,

but all they told us is what we already know.

We're dealing with some kind of novel organophosphate.

We could try something like a catalytic bioscavenger.

What's the hesitation?

If there's a mismatch between the enzyme and the toxin,

it could make things worse.

But staying the course is no longer an option.

We don't have the luxury of certainty.

Not anymore.

It's time for a Hail Mary.

Based on Mr. Russo's description,

it sounds like burn scars.

- Recent? - No.

With recent burns, you'd see active inflammation

and pigment changes.

These sound mature, adapted.

And the compression gloves track.

Severe burns often leave peripheral neuropathy

and edema. - You got what you wanted.

I told you about the scars. I was cooperative.

You ran from federal agents, put civilians in the ICU!

And what you were about to do,

remove a lethal chemical weapon--

Don't try to pin that on me!

I thought I was just cutting out drugs--

I don't care what you thought!

Neither does the law. We're done here.

Did the FBI recover Russo's communication

with the suspect from Telegram? - Dead end.

Messages were set to auto-delete.

Data's irretrievable.

Okay, you're not giving a guy like Russo,

someone you've never met before,

30k unless you did your homework.

- Vetted him first. - Background checks.

- Who's got ears? - I'm here, Sarge.

All right, Kev, see who's been

sniffing around Nick Russo.

Not his rap sheet, like who ran him--

NCIC hits, DMV queries, financial database pulls.

Somebody kicked the tires on this guy

before they hired him. We need that trail.

On it.

So what exactly are you giving me?

It's called a catalytic bioscavenger.

And Cruz, Capp, and Holt have all gotten their doses?

That's right.

How are they doing?

No adverse side effects or reactions so far.

So it's working?

Too soon to tell.

But we'll watch for clinical signs

and then run hourly labs to recheck

the cholinesterase levels.

Hey, is there anybody you want us to call?

Family maybe? - Oh, no.

That's okay.

Um, the only family I have in Chicago

is my sister, Heidi, and my brother, Will,

and I--

I don't wanna worry them.

I didn't know you had any siblings.

Surprise.

We don't keep in touch that often,

and in Will's case, not at all lately.

Can I ask why?

Well--

You don't have to if it's--

No, it's okay.

We lost our mom when Heidi and Will

were in elementary school.

I'm sorry.

I kind of became the de facto mom figure,

which led to some friction.

Heidi and I reconnected over the last couple of months,

but I haven't talked to Will in a while.

The last time we spoke,

we did not leave things on good terms.

Well, as a wise woman once told me,

wherever you left things, that's where they stay.

How dare you use my words against me.

I'm just saying.

Maybe it's time to give 'em a call.

Yeah, maybe.

Like I said, I don't--

I don't wanna worry them.

They've been through enough trauma.

I'll give them a call if I make it out of here.

Mm-mm.

When you make it out of here, okay?

Right, but I--I feel fine.

I'm asymptomatic.

I know, but given the possibility of exposure--

What possibility? I was in full PPE.

So was Novak.

She got sprayed in the face with blood, Dean.

Listen, it is completely your decision,

but we could give you atropine and benzos prophylactically.

Atropine and benzos cross the placenta.

I'm not going to expose my baby

to a known risk for a theoretical one.

You know what else will put the baby at risk?

You going into respiratory failure.

- It's not gonna happen. - You don't know that, Hannah!

We have no idea what this chemical is capable of.

None of us do!

Something you might have thought about bef--

Before?

Oh, before I was so-- so reckless.

Yeah, that's right. That's right.

Where was your concern for our child then?

I'm declining atropine and benzos.

Understood.

Hey.

You okay, man?

I just found out that Lizzie has family here in Chicago.

But she won't call them

because she doesn't wanna worry them.

Call them.

- It's not my place-- - Doesn't matter.

- Mitch, you don't-- - Trust me.

If Lizzie gets mad at you, great.

That means the bioscavenger worked

and she is still here.

I just watched a young woman die in less than 60 seconds.

There is no "I'll do it later" in this.

Call them.

Bingo.

Went through LexisNexis, Sarge.

Nick's plates were ran two weeks ago.

By who?

Some civilian account, fictitious name.

But the login pings back to an IP

that's attached to a coffee shop in the West Loop.

Contact CPIC.

Give them our guy's descriptors.

I want a full dump on all PODs, security cams

near that coffee shop for the last 30 days.

It's a long shot, but maybe somebody who works there

will remember seeing him.

- Worth checking out. - Yeah.

- What's the address? - 1634 Racine.

1634 Racine?

1634 Racine, yes, sir.

Sarge, you know it?

I did once, but it wasn't a coffee shop back then.

How you doing, Joe?

Better, I think.

Maybe it's just, um--

what's that term? Psycho--

Psychosomatic?

That.

Labs come in yet?

No. No, not yet. Not yet.

Were you able to video chat with your family?

- Yeah. - Good.

Okay, uh, I'll be right out there

if you need anything, all right?

My youngest, Otis,

he keeps asking if I'm gonna be home

for his party on Saturday.

Oh, yeah. Birthday?

No, it's end-of-season party

for his basketball team.

Chloe and I are having the kids and the parents

over to our house.

Good incentive for you to get the hell out of here.

I promised to bring the squad by,

let the kids take a ride.

I've always accepted the risks that come with this job,

and it never scared me, but then you have a family.

It's not just your sacrifice anymore.

Something happens to me...

It happens to them.

All right, okay. Okay.

Hold on. Hold on a second, please.

One at a time, please. - Just tell us what's happening.

Our family members died on that plane--

we deserve answers.

Who did this? - Ma'am,

I understand your frustration,

but this is an active investigation.

Details are still being verified,

but I can promise you that we are doing everything possible

to find the people responsible. - This is Tyler.

My son.

And now he's gone and I wanna know why.

They won't let me see him. I just--I just--

just--I just need to--

I just need to see my boy one more time--

Sir, sir, I am very sorry,

but we just don't have all the answers right now.

But I can promise you,

Tyler is not just a case number.

None of your family members are.

We are carrying every single one of them with us.

I promise.

So Macy played a significant role

in saving that baby's life today.

Yeah.

Macy always had this overwhelming need to serve.

Even as a kid...

she'd organize bake sales and donate the money to shelters,

give away her toys every Christmas.

When I would question why she had to be a firefighter,

why she couldn't find some other way to help people,

she'd say, "Mom,

this is my calling."

You know, a lot of people spend

their entire lives searching for that kind of clarity.

And to find it

at the age of 24 and then live it,

I mean, that's pretty rare.

Oh, yeah.

Would you like to meet her?

Shh.

Yeah, actually, I think I know who you're talking about.

I don't know his name, but he comes in here pretty regularly.

He stands out 'cause of the scars and the gloves.

Does he usually pay cash or credit card?

We're cash-only.

Does he ever come in with anyone else?

Not that I remember.

Have you ever talked to him? Small talk even?

Not really.

He's polite, but he's not exactly chatty.

There was this one time

I asked if he lived in the neighborhood.

He said he grew up right here.

W-what'd he mean "right here"?

He said his family lived in an apartment building on this lot.

You said you knew the address.

You know when the building was torn down?

It wasn't torn down. It burned down in '01.

The Heart of Chicago Fire.

That's how he got the scars.

He would have been a kid at the time--10, maybe 11.

- All right, thank you. - Sure thing.

We need to get a resident list for the building for that year.

CFD will have every injury documented.

You good?

Yeah, I just gotta make a quick stop.

I'll meet you back at the unit.

The death toll has risen to 188,

with the sole survivor of Dominion Airlines Flight 63

having passed away just hours ago, we're learning.

While the deaths have been attributed

to acute chemical intoxication,

the nature of that chemical has still not been determined.

I'm sorry to pull you away.

I know you just lost one of your own.

What's happening? Sounded urgent.

There's evidence suggesting that our suspect

was a victim of the Heart of Chicago Fire when he was a boy.

What?

I mean, that article dragging the fire

back into the headlines?

The timing of it?

- Can't be a coincidence. - No way.

So you're saying we created this monster?

Look, whoever he is, we gotta find him.

Hey, please give me a call back when you can.

I don't mean to alarm you, but it is urgent.

Not yet, but even if they were,

Macy Vesia was stable until she wasn't.

I'm not gonna sugarcoat it.

I thought we'd be seeing improvement by now.

Hey, Dr. Archer, you okay?

I'm fine, Kacy. Thanks.

Heart of Chicago fire, that inspection--

we didn't do anything illegal.

He created this, not us.

Dominic, it could come out.

If you need to get ahead of this thing--

- I need you to find this guy. - What's going on?

Voight, we got something.

Come.

So we ran all the Heart of Chicago Fire victims

against the known stats of the offender--

height, weight, compression gloves.

One guy fits--Thomas Marr. He's 36.

He lost his whole family in the fire.

Grew up in foster care.

When he was 16, he was arrested

for assaulting one of his foster parents.

Diagnosed with intermittent explosive disorder and PTSI.

You got a picture of this guy?

Yeah.

All we know is, this guy was a day trader

and a cyber consultant.

Other than that, we got nothing.

LKAs, associates, finances-- this guy's a ghost.

That's the last known photo of him.

It's his mugshot from when he was arrested at 16.

Hank, what is it?

I saved him from that fire.