All language subtitles for CSI.Vegas.S03E10.Tunnel.Vision.720p.AMZN.WEB-DL.H264-NTb.Hi

Previously on CSI: Vegas...

FOLSOM: Everything that has
happened since we started

investigating Mojave Kinematic
Designs is connected.

ROBY: Robert Cuevas' murder,

Cliff Roland's accident,

and Valerie Hammond's
abduction...

I think Valerie knew more about
that murder than she let on.

- What's the DNA telling us?
- ROBY: That it's not hers.

FINADO: It would have
to be synthetic DNA.

We have people
encrypting DNA now?

Whoa, what's going on?

- That's malware.
- ROBY: Shut it down!

All our case files
are being deleted.

We just got hacked.

WILLOWS: Truman Thomas is
behind this whole mess.

ROBY: He got the ball rolling.

And me and you are
gonna pay him a visit.

FOLSOM: Truman's
tellurium operation

is a subterranean lab.
I'll take this hall.

PARK: Maybe that's
where he and his

robot buddies are
cooking up their little

double-helix stink bombs.

[explosions in distance]

Get behind me.

ROBY: Cover your
mouth![Park wheezing]

Chris? Chris, hold on.

[gun cocks] MAN:
Drop it, Dr. Roby.

WILLOWS: You've reached
Catherine Willows.

Please leave a message.

[beeps]

ROBY: He's six
foot, gray suit!

He's got a Beretta!
Tell Joshua...

ROBY: Oh, God.

[grunting]

[gasps]

MAN: Let's go!

Move, move, move, move, move!

[gasps]

Chris! Max!

Chris!

Oh, my God. No, please,
please, please, please, ple...

Please, please...

Oh, thank God.

[line ringing]

DISPATCH: LVPD.

This is Catherine Willows.

I need immediate
medical assistance.

A CSI is down.

[whirring] Earthlore
mine, basement level.

Chris...

Basement level.
He's unresponsive.

- Allie, what happened?
- I'm not sure.

There was some
kind of explosion.

When Catherine got to Chris,

- he was unconscious.
- What?

It's bad.

- Is he gonna be all right?
- I don't know.

Josh, Max is missing.

Catherine said she was taken.

Did you know they
were coming out here?

This is Truman Thomas' mine.

Max was this close.

Now he thinks he can
just roll everything up?

GILL: Chris?

What happened to him?

What's wrong with my hand?

Oh.

FINADO: Absorption
through nitrile gloves,

fasciculation of the muscles,

intense sweating and...

a faint, fruity odor.

- This is a nerve agent.
- EMT: Nerve agent?

- Like sarin gas?
- What?

- Oh, my God!
- Ho, ho. Stop, stop.

Everybody stay put. We're
not dealing with a gas.

If we were, we'd
already be dead.

Whatever this nerve agent is...
whatever we're dealing with...

it's stable at room temp.

It-It's not in the air.

You've got mild
contact exposure there.

Go get treated.
You'll be fine.

Everybody else, we
need to work the scene.

Here, butyl rubber gloves.

- Put those on, you'll be fine.
- EMT: Okay.

Chris isn't fine.

FINADO: Yeah, whatever
happened, he inhaled it.

He needs a hospital. Let's go.

What about Max? She might have

- inhaled it, too.
- I know. We have to find her, fast.

I'm going with him.

Not a single camera in here.

It's unreal.

Whatever Truman was
doing down here,

he didn't want a record of it.

I saw a camera upstairs, though.

Outside the
foreman's... Trailer?

- Yeah.
- Yeah, I already checked the footage.

Only people coming and going

that way are Max,
Chris, you and LVPD.

I was just down that hall.

How the hell did
that gray suit guy

- get in without me seeing him?
- Gray suit?

ROBY: He's six
foot, gray suit!

He's got a Beretta!
Tell Joshua...

[loud bang] What? What
was she gonna tell me?

Who knows? That's
all there is.

Okay, so, the room where
she was taken is this way?

Yes, but the question is

what was their way out?

That's just storage.
There's no other door.

- He couldn't have doubled back?
- No, I told you.

So, just, poof... vanished?

He's not David Copperfield.

There's got to be
another entrance.

Not according to
building schematics.

There's nothing on
Max's camera, either.

[bangs loudly]

Josh, listen... No.

Look.

Look at what?

The dust.

That doesn't make any sense.

With the door closed,
the air in here

shouldn't be moving much.

So why is the dust swirling
all over the place?

Fluid dynamics.

There must be an airflow

imbalancein here.

This is where the
gray suit came in.

Truman had himself
a secret exit.

WILLOWS: The door's
been blasted.

WILLOWS: That explains
the explosions I heard.

But why would Truman send people

to blow their way
into his own lab?

Avoid the cameras,

throw us off the scent.
It's not gonna work.

Wait, just hold it, cowboy.

That charge is live.

And there could be more.
We just have to back off,

let LVPD ARMOR

- clear the scene.
- Look, we don't have time to wait

- for bomb squad to get here.
- Josh,

you're all out of
strikes with IAB.

You break protocol...
I don't care

about my job. If
Max is down there...

What would she tell you to do?

Get ARMOR here quick.

You know what's - down there, right?
- Yes,

the Vegas flood channels.

FOLSOM: Over 600
miles of them,

spread out under the whole city.

WILLOWS: And Max is in
that deep, dark maze.

Somewhere.

[Roby exhales]

What a mess. What a mess.

You really don't
unclench your jaw

once you sink your teeth in,

do you, Dr. Roby?

How do you know my name?

Oh, I know a lot more than that.

But I'll be the one

asking the questions.

Tell me...

Idiots.

I told you to use the
smoke as a last resort.

- Did you breathe it in?
- A hostage slows us down, boss.

- Let me shoot her.
- I... No!

It was just dermal exposure.

Your DNA...

Your DNA encryption...
it's sloppy.

Is it, now?

I seem to remember using
it to hack your lab.

You asked me how I
found you. That was it.

When I ran that

synthetic DNA that you left,

the malware didn't launch.

Not like it was supposed to.

And you only hacked our lab

because I got curious and opened

a damn text file.

I did half your work for
you. That was my mistake.

Right after you made yours.

All right.

You're the expert.

What mistakes did we make?

I will not tell you.

Then I'm afraid

you don't have much
use to me, so I...

But if you keep me
alive, I will show you.

I just n...

I need a little help.

Someone with a steady hand.

No.

You can do it yourself.

Is that atropine?

Oh...[clatters]

That's all right. Here,

let me.

In ten minutes,

your symptoms will
be under control.

Gentlemen, help Dr. Roby along.

It seems she'll be our guest
for a little while longer.

♪ ♪

♪ Who... are you? ♪

♪ Who, who, who, who? ♪

♪ Who... are you? ♪

♪ Who, who, who, who? ♪

♪ I really wanna know ♪

♪ Who... are you? ♪

♪ Oh-oh-oh ♪ Who... ♪

♪ Come on, tell me who
are you, you, you ♪

♪ Are you. ♪

♪ ♪

All clear.

[indistinct radio
chatter][dogs barking]

MAN: Get in there!

Hustle, hustle.

[indistinct chatter]

Okay, people, we've got
cops and K9s in the tunnels,

but with no direction.

What are we looking at?

A whole lot of random
missing equipment.

Think Truman started
packing it up

when he realized
Max was circling?

Well, synthesizing DNA
isn't necessarily illegal.

Do we know what these creepy
robot lab techs were brewing up?

No, butyou just

walked through a hidden escape
hatch in an underground lair.

I don't think they were
solving male pattern baldness.

Right, then. Working theory,

Truman's people were
using the tunnels

to move out their equipment
before we could get here.

Only we beat them to it.

So then it became
kill or capture.

Chris gets the worst of it,

they take a hostage.

FOLSOM: These tunnels
run under the whole city,

hundreds of exits. Max
could be anywhere out there.

Yeah, but everything we
need to find her is in here.

Let's focus on that.

So the people we're looking for

used plastic explosives
and a nerve agent.

Those are not
over-the-counter weapons.

Composition of the materials

could lead to
where it came from.

That's where I would
start. I-I did sample

the explosive residue, but
what I really want to look at

is that last charge

- that didn't go off.
- No, no, no,

it-it'll take too long.
Look, these people left

in a big damn hurry.
They'll make mistakes.

There's got to be a trail
for us to follow in there.

WILLOWS: Allie,

you built teams for a reason.

That's right.

Okay, Catherine, you and
Beau coordinate with ARMOR.

That undetonated charge

could contain trace that
IDs whoever made it.

Penny's at the
hospital with Chris.

I'll have her process him.

Hopefully she can figure out

what he was dosed with.
Chavez, we need to get

in front of Truman Thomas.

I'll put out a BOLO,

go rattle some rich people.

You and me...

we're with the bloodhounds.
We're going after her.

GILL: That's his third dose

of atropine and
pralidoxime chloride.

Shouldn't he be waking up?

I was hoping for
some improvement

by now.

We're doing all we can.

I'll check back soon.

Penny.

We came as fast as
we could.[sniffles]

- Sonya.
- Jack told me

what was going on.
I'm clocking in.

I thought you still had a
few more months of PT left

before you... Last
year, when that was me,

you guys saved my life.

I'm not gonna stand here on
the sidelines while Chris

is here and Max is missing.

You okay?

No.

No, I'm not.

The last things I said to
Chris were really harsh

because he said

our engagement was fake.

Well, you know that it's not.

And I'm sure Chris
knows that, too.

I just... I want to... I
want to tell him I'm sorry,

but I can't, and I
can't do anything.

Come here.

[crying]

SONYA: That's not true.

You can do your job.

[sniffles]

Um, the doctor said

the chemical was concentrated
on his right hand.

He must have pushed
it away from Max.

I think he saved her.

And he might be
able to do it again.

GC/MS will identify
the nerve agent

and give us any
batch-specific impurities.

Then, if we can figure out what
it was and where it came from...

You might be able to ID
the people who took Max.

[Roby gasping]

ROBY: You started
relocating all your gear

down here once you
realized we got close?

You have everything you need?

A sterile environment
would be nice.

It's the maid's
day off, Dr. Roby.

You said you could
improve on our methods.

Can you encode a message
on DNA here or not?

You know, uh...

some sodium acetate or

nonionic detergent

would really speed things along.

Maybe your boss would
be happy to get us some?

My boss?

[laughs]

- And who might that be?
- Truman Thomas.

The man who got you all this.

You'll have to work with
what you have, Dr. Roby.

So, get creative,

or...

get disposed of.

I can make my own
sodium acetate.

That's the spirit.

Let me guess,

there's something else
you need I don't have.

A DNA sample.

You're in luck, princess.

You brought your own.

It's a damn spiderweb down here.

[dogs barking in distance]

Every one of these tunnels
looks exactly alike.

Are you sure we haven't
been this way already?

I don't know.

With all these footprints,

it's hard to tell
which one are ours.

Do those look fresh?

Maybe, or those might belong

to some of the unhoused
folks who live down here.

Or just kids partying.

RAJAN: Hold on.

What's this?

Allie, be careful. Anything
could be on that needle.

Not anything. Atropine.

Atropine is an anticholinergic.

It's used to reduce the
symptoms of nerve agents.

FOLSOM: That's got
to be our guys.

They crushed it
underfoot, kept moving?

Maybe one of them
accidentally dosed themselves.

Needed treatment.

Or Max was exposed.

Hey, if they gave Max

atropine, means they're
keeping her alive.

Which way did they take
her? No way to be sure.

- No blood.
- Hey.

Can I borrow your luminol?

I just got a crazy idea.

We could use a crazy idea.

[Folsom grunts]

All right, so, as we know,

blood activates luminol,
causing it to glow blue.

Okay. Atropine
works by blocking

muscarinic acetylcholine
receptors, right?

The ones nerve
agents overstimulate.

And just like

it blocks those,
it also suppresses

the electrons in
activated luminol.

Kills that blue glow.

So, wherever you spray
that, if it stops glowing,

it means atropine was there.

Reverse luminol.
That's brilliant.

Remind me to patent it later.

Big boots.

One of Max's captors

must have stepped
on this syringe.

Guys,

we found boot prints likely
belonging to our perp.

Size 13. Wavy tread.

Hold on, Max. We're
coming for you.

What are we looking at, partner?

My oldest daughter's
favorite color,

which means the explosive
used in the underground lab

contained RDX.

C-4. Mm-hmm.

It's a common explosive
in the mining industry.

Still looks like
Truman's our guy.

[phone chimes] Is
that news from ARMOR?

Mm. Not the kind you want.

They can't disarm the charge,

and here's why.

Does that have
six blasting caps?

ARMOR says there's
only one trigger,

so five of those have
got to be dummies.

I haven't seen a
knot that tangled

since we pulled out
our Christmas lights

last December. It's gonna make

opening the bomb
way too dangerous.

Well, that's the
point. Bomb makers know

they leave trace in their work,

so they make them
impossible to open

without detonating...
covers their tracks.

Maybe the charges
that did detonate

can help us disarm
the one that didn't.

Small variations in
bomb construction...

like placement of
a live trigger...

affect the blast pattern.

All five blast patterns at the
crime scene were identical,

which means the charges
were made the same way.

Makes sense. They were likely
made by the same people.

- How does that help?
- Odds are,

our undetonated charge
is an exact copy

of the siblings.

So, if we make six
versions of the bomb,

each wired a different way,

we can use blast
pattern analysis...

To figure out which trigger in
our undetonated friend is live.

Find the trigger,
disarm the bomb.

All that beautiful
trace inside is ours.

And it might lead us
to the bomb maker.

Grab your safety
goggles, Willows.

Things are about to go kaboom.

["Rush" by Troye Sivan playing]

♪ Big communication, tell
me what you want... ♪

Sabrina. Where's your boss?

Sorry, Detective,
I'm not on the clock.

And...

I don't have him.

One of my friends

is in the hospital

and Dr. Roby's been abducted.

Time to punch in.
Now, why was Truman

making synthetic DNA
below his tellurium mine?

Look, I'm an executive
assistant, not a scientist.

I don't know anything
about synthetic DNA,

but I do know Truman
wouldn't hurt anyone.

See, I think he would. I mean,
just a few weeks ago, he told me

he hoped AI killed his employee,

so I doubt whatever he's
hiding in that basement

is legal.

And I'd bet

he'd kill to protect it.

I believe in Truman.

In his vision of a future
where the world is...

The only future I care about is
the one where I find Max Roby.

And if you don't want to face
obstruction of justice charges,

you should, too.

I really don't have him.

It's weird.

Truman always answers my calls.

RAJAN: [exhales] Have
we lost the trail?

Josh, what if we can't find her?

I don't think I could
live with myself.

Hey, hey, hey. Stay positive.

Max wouldn't want me thinking
up exotic ways to hurt

the men who took her, and
she wouldn't want you going

all doom and gloom.

Hey.

Well, that thing's been moved.

A lot. Wonder
what it's hiding.

Whoa.

Did Truman's people stow

some kind of getaway
truck down here?

Maybe.

Maybe it's just a city
maintenance pickup?

I don't think so. I got blood.

Got something else.

It's Truman Thomas.

Josh, he's our only suspect.

If he doesn't have
Max, who does?

I just don't get it. I
mean, isn't Truman Thomas

supposed to be, like,
our prime suspect?

Guess we're gonna
need another one.

Got it.

Nine millimeter.

[sighs]

Off-the-shelf ammo
isn't gonna help us find

the people who have Max.

It's so weird.

His renal system looks very...

- Fresh?
- Yeah.

Just ran his blood tox.

His KLK1 levels

are way elevated for
somebody his age.

Hang on, you don't...

[scoffs] You don't
think that...

That a tech billionaire

got a de-aging stem
cell transplant?

Yes, Jack. Yes, I do.

Well, turns out that youth
does have a price tag.

If he wanted to live forever,

my guy should have worn
a bulletproof vest.

I'm just worried
about Max and Chris

and the way Penny
left things with him.

She's just really
worried, you know? And...

I just hope she gets a
chance to talk to him again.

You really love her, huh?

[door opens]

[exhales]

Zoey ran the blood
from the truck

that Allie and Folsom
found in the tunnels.

JACK: Truman's?

Actually, most of it wasn't.

Please tell me it
didn't belong...

Oh, no, no, it wasn't
Max. Thank God.

It was Valerie Hammond.

She's been missing since Chavez
found her apartment ransacked.

There was enough blood to safely
assume that she's dead, too.

So, however Truman was
involved, he ain't anymore.

Maybe an underling got
sick of taking orders.

Or-or maybe

a rival tech CEO wanted
the throne. Or...

Or maybe we should stop playing

"guess the motive" and
follow the evidence.

Right. Perimortem bruising.

Split lip. Suggests
that Truman

was roughed up before
being force-fed a bullet.

You think the killer
tortured him for information?

Possibly. What is that?

[sighs] No bulb. No DNA.

No, but it could have come
from a man who has Max.

And that makes it one of
the best leads we've got.

Breathe.

I want you to succeed.

I mean, some of this
equipment is outdated.

This process requires
precision, and it just...

It's a shoddy carpenter
who blames her tools.

You have to make it work.

Or else

you might never see him again.

Who's him?

Aw, come now, Dr. Roby.

You have a new love.

But nobody knows that.
How do you know that?

I told you, I know many things.

Even more now that I
can study you up close.

Your child is grown.

Your life is your work.
You love your people.

But you hold yourself back

to watch them,

to watch over them.

You have been

so lonely.

But now... now you have

this man.

Dean.

How do you know his name?

You want to see him
again, don't you?

Yes.

Get back to work.

You wouldn't want to
compromise the cell lysis.

[sighs]

[indistinct chatter]

Here.

- What's wrong?
- Whole truck's been wiped clean.

Damn it.

I thought we were on them.

RAJAN: Are we sure we're
still tracking the guy

who stepped in the atropine?

Yeah, it's him.

You can tell because
his right foot

is overpronated.

Ah, gait analysis.

You always were
Max's best student.

All right, truck's a total bust.

Means all we got
are these prints.

RAJAN: Well, they
led us this far.

Maybe they'll take
us all the way.

GILL: Yes, I hear
what you're saying,

but what I'm ask...

Okay. Thank you.

Hey. You okay?

Oh, that was Chris' doctor.

He's still not awake,

so it's not looking good.

Penny, I'm so sorry.

You know Jack is here for you.

Yeah, and I'm here for you, too.

You know, you and I never
got a chance to talk

about the engagement.

Oh, uh... Which was a surprise.

Yeah, I...

But I can really tell just...

Well, just how much
Jack...[computer chimes]

Uh, what's GC/MS say?

[computer beeps]

The nerve agent's soman.

Soman gas?

What's a World
War II Nazi weapon

doing in Vegas?

Oh, well, technically,

it's an aerosolized
liquid, not a gas.

But that's not
important right now.

Soman, soman. The
vapor must have settled

by the time you got on scene,
because if it had been sarin,

it still would have - been airborne.
- And we'd all be dead.

I mean, inhaling even a
few milligrams of soman

will kill a person.

I don't know how much
Chris breathed in.

Okay, a nerve agent

twice as lethal as sarin...

that didn't come
from a drugstore.

No. That's a highly
regulated WMD.

Which means that
the circle of people

who could be
responsible just shrunk.

Yeah, but not enough.

Okay, I don't know
if this could help.

We found this stuck
on Truman's lip.

I think he bit his attacker.

There's no bulb.

I figured if anyone had a
clever way to process it,

it'd be you.

Oh, man, it gets
hot in this thing.

Why do you think I let you
take the fun job?[chuckles]

Okay, what do we got?
Let's take a look.

All right.

No match.

Well, one down, five to go.

- Smells like burnt motor oil.
- Yeah.

Because you use oil when...

What?

Um... uh, uh, your cell phone...

let me borrow your
cell phone, please.

- Okay, okay, okay.
- I got to call Randy.

I got to ask him to run that
explosive residue sample

from the crime scene
to the QTOF.Randy?

He's still doing you
a favor after making

maggot smoothies in his blender?

Oh, no, I told him
Folsom did that.

Sonya said she gave
you the hair sample

we found on Truman's lip.

This is the hair.

It's ground up, dried,

and reconstituted in solution.

So, what are you doing with it?

IDing Truman's killer,

finding Max's abductor
and saving the day.

But there's no DNA there.

Oh, my little,
cute morgue monkey.

Even without DNA,
hair can tell us a lot

about who it belonged to.

The hydrogen and oxygen
isotope ratios in our hair

directly correlate
to the types of food

and quality of tap
water we consume.

So, it can help you predict
where a person has lived?

Down to the city.

We're gonna find these bastards.

[Willows chuckles]

FOLSOM: Hey. Now
our guy's footprints

lead right to that door.

This is CSI Allie Rajan
requesting backup.

Hey, she might be
in there right now.

I'm not waiting.

- Max!
- Max?

She's not here.

[sighs]

Ah, we missed her.

- That's it!
- Yes. Yes!

Lucky number four.

We can now disarmthis dud

and process it for trace.

Randy texted me the QTOF results

for the explosive
residue. We are looking at

RDX, binding agents,
plasticizer...

Process oil.

Process oil?

Civilian C-4 is made with
low viscosity motor oil.

Process oil is military grade.

"Sulfur ratios in
the oil provided

a geographic provenance..."

It wasn't made in America.

Josh, this is in Arabic.

Until a few months ago,

Truman's killer didn't live
in Vegas or even the U.S.

He's from Riyadh.

Saudi Arabia?

I sent Penny's analysis
of our soman sample

to an FBI buddy.

He checked the impurities

- against their database.
- And?

Same batch was used last
year in an embassy attack

by Saudi spies.

We had it wrong from the start.

- It wasn't Truman.
- We were never

up against artificial
intelligence.

This whole mess was run
by foreign intelligence.

[exhales] Where are you, Max?

[man speaking Arabic]

So Truman wasn't rolling up
shop, his lab was robbed.

By someone with a taste - for Saudi Arabian candy.
- Yeah.

And synthesizing DNA.

That's why all
Truman's equipment

is here.

Look... one up, one down.

That's Max.

They had her working here.

We just missed her.

Josh.

I should have been with her.

It would have been me
instead of Chris last night.

And I asked her to
take me with her!

And she said no.
That's not on you.

Yes, it is. Because she
still doesn't trust me.

And who could blame her?

All this guilt you
have about Max,

your mom, all that happened.

You can't keep blaming
yourself for everything.

Okay, I'll go to a therapist
just as soon as Max is safe.

Al.

I doubt they were listening to
Top of the Pops on that thing.

Saudi Arabian intelligence
dosed Chris with soman

and kidnapped Max.

I-I know that's where
the evidence points,

but why would they care
about our crime lab?

They didn't. Not until Max set
her sights on Truman Thomas.

His robotics company.
They were nestled in there

and didn't want
to get found out.

So Truman was never
behind all these deaths?

The Bureau has been
warning us for years

that foreign governments
are infiltrating

U.S. companies, stealing tech.

Yeah, like proprietary DNA
synthesis equipment, or...

borderline sentient robots.

Robots...

that Cliff Roland helped build.

Maybe he was just

a pawn in this.

CHAVEZ: Valerie Hammond, too.

I mean, she all but admitted
to being set up with him.

She was scared of somebody.
I thought it was Truman.

It was the people who hired
her to sleep with Cliff.

Get a little kompromat,
turn him into an asset.

With Cliff, they would have
eyes inside Truman's company.

Right up until an
innocent mechanic

saw him tampering with Ocho.

That's why Robert
Cuevas had to die.

He saw what Cliff was doing.

As soon as Max started circling,

the Saudis had to tie
up their loose ends.

[yells]

WILLOWS: They killed
everyone involved.

They hacked our lab...

Shut it down! ...erased
every file on the case.

You realize the tech they used

was probably stolen from Truman.

They're gonna send it overseas.

Not today. I had
the Feds ground

all private air traffic - out of Vegas.
- FINADO: Good.

But look, we're-we're
still nowhere.

Allie and Folsom missed
Max in the tunnels.

Maybe just by minutes,

but they missed her.

FINADO: not understand
how these guys

are always one step ahead of us.

How could they know that Max

w-was gonna go to...

[whispering]: They're spies.

Maybe they're spying on us.

So here I thought you
were just really clever.

Turns out you just
bugged my office.

Not to be pedantic, but I
just bugged a lot of robots.

You put one in your office.

Ocho was just another one of
your recruits, like Valerie?

Pity, that one.

But that's the
thing with assets.

When they become a liability...

[chuckles]

Valerie was a person,

like Cliff Roland,
like Robert Cuevas.

They were not assets.
You killed people.

They didn't all have to die.

But you wouldn't stop
digging into Truman.

I thought he was
behind all this.

We all have our
hang-ups, Dr. Roby.

You wanted it to be an
arrogant billionaire, so

I gift wrapped him for you.

At least, I tried.

Well, as much fun
as this has been...

Time for you to
scurry back to Riyadh?

I would call it a
triumphant return.

Truman's dream of having

AI-powered robots fix
all our genetic flaws

might be pure fantasy.

But as you've seen,

his technology is very real.

You used it to hack my lab.

And to show my
superiors how useful

synthetic DNA can be.

Military operations.

Forensic obfuscation.

The possibilities are...

[inhales]

exciting.

Especially if the improvements

that you made to our malware
encryption prove out.

And once they do,

what then?

I'm the last loose end?

Don't worry, Dr. Roby.

I like you.

Time to test your synthetic DNA.

See if you're all talk.

[beeping]

[whirring]

[exhales]

- We can talk now?
- Yeah.

Are you sure you don't want to
smash that thing with a hammer?

It's evidence, remember. But

the microwave transceiver's
been neutralized.

I can't believe
it's been staring us

in the face this whole time.

I should have
tossed this bastard

- into Lake Mead last month.
- Serena.

Evidence. Evidence.
It's all evidence.

Okay.

Three, two, one.

That's it.

You know, Beau, with your
expertise in materials

and my experience
with explosives...

We make a dynamite
duo? [chuckles]

I know why this dud was a dud.

A microwave transceiver?

How did we miss this?

CHAVEZ: We were looking
for a high-tech hack.

Not some relay system from 1956.

Microwave transmission
is incredibly difficult

to intercept because its
frequency range is so narrow.

Air-gapping the
lab didn't stop it?

Nope. But microwave relay is
not magic, it has drawbacks.

It requires a line of sight.

So, what... they
were listening to us

from somewhere right out there?

By now they know all flights
out of Vegas are grounded.

There's a good chance

they're laying low with
their hostage somewhere safe.

GILL: I don't know how
many Saudi stash houses

are dotted around this city,

but I'm thinking,
I'm hoping, not many.

They could be hiding at
their listening post.

Which has got to be within
our line of sight here.

CHAVEZ: See, I
did some digging

into local Saudi
shell companies.

These guys are pouring
cash into casinos, hotels,

MMA... We're right off the
Strip. That could be anywhere.

FINADO: Not anywhere.

- Anywhere with a pool.
- We figured out

why the sixth charge
never went off.

GC/MS confirmed that the wiring
was corroded by chlorine.

And metal and chlorine
are not friends.

WILLOWS: There's
no earthly reason

why chlorine would
be in an explosive.

Suggests that they made
it somewhere near a pool.

Looking up all rooftop pools

in line of sight
of Max's office.

The Sphere's blocking that pool.

What about that one?

No, no, that office
building's blocking those two.

WILLOWS: That
one's got to be it.

At least it better be.

[dance music playing]

[laughing, cheering]

No genomic markers.

No scars.

This sample is flawless.

I held up my end of our deal.

You are a woman of
your word, Dr. Roby.

There are some people in Riyadh
who would love to meet you.

[speaking Arabic]

♪ Roll it up ♪

♪ 'Cause your grass
is always greener ♪

♪ Roll it up ♪

♪ 'Cause it's always
me you'll dream of... ♪

Hey. We got a problem.

Hotel owner's a piece of work,

won't lock this place
down without a warrant.

Screw that.

Max is here somewhere.

My dad started Ted's career.

I'll handle him.

[dance music continues playing]

[lively crowd chatter]

♪ Tell me, lately,
have you seen her? ♪

♪ Roll it up ♪

♪ ♪

♪ Hey, hey. ♪

I appreciate your
ingenuity, Dr. Roby.

It's been a pleasure.[gun cocks]

Wait a minute.

Don't you want to know
what I encoded in this?

Three male captors,

one with an
overpronated right foot.

Dialect from central
Saudi Arabia.

Oh, and all of
your names, Rashad.

Guess I'm pretty
observant, too, huh?

Go on. Shoot me.

Because my people will
have all your names

and they will find you.

[grunting]

[dance music playing]

[indistinct chatter]

It's him. His right
foot is overpronated.

I got eyes on one of them.

- Hey!
- No! No!

No.

Max!

[grunts]

Josh!

[gunshot]

♪ ♪

Drop her.

Now.

Hands up!

CHAVEZ: You're under
arrest.[handcuffs clicking]

I knew...

I knew you'd find me.

[exhales sharply]

Thank you.

♪ ♪

[monitor beeping steadily]

You okay?

Hon?

Jack, will you marry me?

[chuckles] Um...

We're already engaged.

No, we're not.

Not really.

I mean, Chris was right.

I've been dragging my
feet. I've been scared

to set a date. You know that.

It's 'cause I was afraid.

But I shouldn't be,
because I love you.

And I want us.

I want it to be real.

So, will you marry me?

A-And very specifically,

in two months.

Maybe, uh, Saturday the 14th,

and I know a cake guy, so
if we move your dentist...

Yes.

[laughing]

You goofball.

Yes, I will marry you
on Saturday the 14th.

[monitor beeping]

Penny... Oh, my God.

Nurse?

Chris?

Chris.

[phone chimes]

Hey.

You hear about Chris?

Yeah.

I mean, it's progress, right?

Oof. So, you ready?

Yeah.

We said our goodbyes
a while ago.

[chuckles] FOLSOM:
Yeah, adios, pal.

Just give me a minute.

I got something for you.

I'm back?

You never left.

- See that?
- Max told you, then?

Well, we're the
same level again.

Uh, excuse me, technically,
I'm still your supervisor.

Uh, yes, I am.[laughs]

Okay. Well, all in a day's work.

Good night, Detective.

Yeah. Night.

♪ ♪

Captioning sponsored by CBS

and TOYOTA.

Captioned by Media Access
Group at WGBH access.wgbh.org