Original subtitles

♪ It was automation, I know ♪

♪ That was what was making the factory go ♪

♪ There's an RCA 503 ♪

♪ Standing next to me, dear ♪

♪ Where you used to be ♪

All right, keep up the good work, Cinco.

♪ Doesn't have your smile... ♪

Hey, Tres, how's it going there?

♪ Just a bunch of punch cards and light bulbs ♪

♪ And tape, dear ♪

♪ You're a girl who's soft ♪

♪ Warm and sweet ♪

♪ But you're only human ♪

♪ And that's obsolete ♪

♪ Though I'm very fond of that new 503 ♪

♪ Dear ♪ What?

♪ Automation's not ♪

Cuatro, did you see that? ♪ For ♪

♪ Me. ♪

Cuatro, what just happened?

What the...?

Oh, hold it.

Oh.

Hey.

We don't have to be... Look, I know we're not together anymore...

Good morning. Hey.

I'm sorry.

No...

How have you been?

I'm, uh, I'm fine.

We should still be able to talk, you know?

Share stuff.

It's not like I'm still reporting on you guys

to Internal Affairs anymore.

And the venue was so great and...

But there's no pressure to set a date, though.

No pressure at all.

I was just writing in the future log

in my bullet journal.

Maybe you're not a "long-term plan" kind of gal.

Also cool.

Everything okay?

Did you just hear what Chavez said?

Uh, uh, no, no. What? Detective Chavez.

She just said it's not like she's still reporting

on us guys to Internal Affairs anymore.

Not like she's still, as in she was.

Chavez was reporting on us to Internal Affairs.

All of us. In secret.

Probably this whole time.

Which is... bad.

I-I can't believe this. I got to go.

Yeah.

Smile, Allie, you're on camera.

Don't get too excited. Some kind of power surge

knocked everything offline.

Cameras, motion sensors,

and most of the robots.

Most of the robots?

Mm-hmm. They cleared them all out for us.

And apparently they call this place a "dark factory."

Machines run all night,

and they set up for human workers the next day.

They weren't just using the machines.

Look, they were building them.

So, robots building robots.

Robots all the way down.

The overnight shift is maintained

by just one man. Well, it was.

Robert Cuevas, 48.

Worked in this factory the last eight years.

Contusions here and here.

Probably some more here.

So cause could be blunt force trauma.

Hey, what do you make of this?

Whoa. Whoa?

What's whoa?

This spatter is all over the map.

It came from only a handful of impacts,

but the size of the blood droplets...

These are around four millimeters.

These are maybe two, 2.5.

All normal.

Those are one millimeter.

Less than a millimeter means really fast,

like a bullet or a table saw.

But the pattern is similar to a blunt impact.

Like a punch. Hi.

Hi there.

Sorry to bother. Sorry.

I'm Sabrina, Mr. Thomas's assistant.

Mr. Thomas?

The owner of this company, among many others.

I was asked to let you know that the techs

who found Mr. Cuevas's body are here

if you maybe want to talk to them.

Yeah.

Hey.

A man lay dying with all these machines

moving and working all around him, huh?

It's kind of dehumanizing.

Wait a minute.

Is that blood?

Yeah, there's more here.

Allie.

Are those hairs?

Yep.

Same color as our victim's, right?

Well...

Did they go out that way or...?

Let's see.

Look there. It's going this way.

That's a bit bizarre, right?

Hey there, little fella.

So, you didn't kill him, did you?

♪ 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! ♪

Hey, where's your little bestie?

Beau and I drove separately.

Believe me, we see enough of each other

under Allie's partner system.

You don't really think that a robot killed that guy, do you?

Well, the experts say it couldn't happen.

RGB/lidar array combined with a proximity guidance system

means it can see perfectly.

It couldn't collide with objects.

We built it to not collide with objects.

Thank you for that very thorough explanation,

which wasn't an answer to my question.

Is it literally impossible

for one of these machines to hurt someone?

We've been building these guys for six years.

Never had an injury.

Well, Bill burnt his hand

on a soldering iron last month.

We've never had a robot-related accident.

Okay, what if it wasn't an accident?

Could someone tamper with one of these things

to make it more dangerous?

Well, I ran diagnostics on the bloody one, uh, Ocho.

Uh, Ocho's his name because he's the eighth robot.

Would it surprise you to learn I speak Spanish?

Right.

Well, he's as good as he was fresh off the assembly line.

Uh, nobody's tampered with him.

But the robots can be controlled. Right?

Like a person drives a car.

Who here could get behind the wheel of one of these things?

Our bipedal hydraulic humanoid robots

use key frame programming and a suite of AI tools

to operate.

That takes experience, but,

I guess a lot of the folks who work here could figure it out.

At least in theory. I just think...

Hey, hey!

Hey, hey.

Hey, what do you think you're doing?

That's proprietary technology.

Well, this proprietary technology

is at the very least a murder weapon.

Or an actual murderer.

Either this man-made machine killed Mr. Cuevas,

or that's what somebody wants us to think.

Either way, some person is responsible.

Ocho and the blood spatter

that's all the evidence we've got,

so, yeah, he is coming with us.

Beau, that Roomba's headed toward my blood spatter.

No, no-no-no-no, no-no-no-no-no-no-no-no.

I got it. I got it.

I'm fine.

Just weird doing an autopsy

where the killer might actually be in the same room as me.

Max and Allie are here.

Love you. Uh, listen to your physical therapist.

Your sister doing better?

Comes home Friday.

The doctors thought it would take much longer

to bounce back from thallium poisoning,

but they are happy with her progress.

That,

and also she won't stop critiquing

her physio's understanding of anatomy, so...

Sounds like she's back to normal.

So, Mr. Cuevas.

Cause of death is clear.

Blunt force trauma to the head, neck and chest.

Manner of death, on the other hand,

is trickier to define.

Not natural, not suicide, which leaves us with accident

or... Homicide.

Robocide, though, right? Mm-hmm.

"Cide" meaning act of killing,

"homi" meaning by human, whereas...

You think Ocho is responsible.

Almost missed it in the examination,

but I caught it in the X-ray.

Now, this is a bit of our victim's skull,

cleaned and lit obliquely.

You can see the impact here.

Something hit him hard,

leaving this very distinctive wound.

Now, this is the robot's hand.

You see the manufacturing defect,

this little curve?

I'd call that a match.

This robot hit our victim on the head

very hard. Oi.

I have something here.

There's something reflective in this wound.

Some kind of piece of glass.

I didn't notice any chipped or cracked glass on Ocho.

Maybe he was struck by some secondary implement.

A bottle or a drinking glass?

Remember that one time, with the snow globe?

I don't know what a snow globe's doing in a robot factory.

Find out where the glass came from.

And I'm gonna get together with Folsom

and try and recreate his attack.

I wish he would just tell us what happened.

But I guess if we want to find the person responsible,

we're gonna have to figure out

what happened to this man, blow by blow.

My dad was a really good guy.

I'm sure everybody who comes in here says that,

but he... Everyone at his job said he was really kind.

We'd go to the supermarket, the bank,

and everybody working there knew him, like,

"Hi, Robert." "How's it going, Robert?"

He got along with everyone, almost.

Almost?

There was this woman at his work.

She's around my age. Her name's Eve?

Her and Dad got into it pretty bad a couple months ago.

I think she kind of hated him, actually.

Do you know what the fight was about?

He didn't want to tell me,

but I think it had something to do with a patent.

Which is weird. A patent?

My dad was really good at putting things together.

But he wasn't like a real engineer or anything.

He didn't go to college.

I think he got it in his head

that he was contributing more than he really was.

He was actually pretty stuck on that.

But you don't think that that's why he...

Right now we don't know.

I hope that he didn't

whatever it was, you know

push it and get himself...

I'm sorry, I just...

I'm not ready to not have him around, you know?

I can feel it.

This is gonna be the one.

It's gonna float up to that little line,

tell us it's a match

to that tiny shard in the victim's neck.

Okay.

The next one will be the one.

Totally. It better be.

We're running out of glass from the crime scene.

Unless there's some more stuff in this vacuum thingy.

If I can figure out how to...

Oh! ...Open it.

You good?

Are you ready for the next one?

Yeah.

Are you still thinking about Chavez?

No.

Well, I mean,

it's just, when, when I told you about Chavez

reporting to the IAB, you said yeah,

but you said yeah like you already knew.

I did. For a few weeks now.

And that didn't bother you?

Is it annoying if I say "Not really"?

Yes.

Well, not really.

Hey, this is really bothering you.

No, it's just weird.

We should get back to work.

On the glass?

Okay.

Yep.

This one for sure.

We know your boss is here.

LVPD saw his Bentley pull in 20 minutes ago.

I understand.

It's really frustrating.

But I'm afraid I just don't have him right now.

"Frustrating"?

One of his employees was murdered last night

on the floor of his factory.

Any idea when you will "have him"?

I'm so sorry.

Believe me, we are all still reeling

from Mr. Cuevas's passing.

But all I can say at the moment is,

I don't have him.

What about the woman I spoke to earlier?

Eve.

We have some follow-up questions to ask her.

Unfortunately, I don't have her at the moment either.

Oh. You don't even have to look?

I don't have her. Of course you don't "have" her.

'Cause you can't "have" people.

You can have a good time.

You can have a hankering for pancakes.

You can have chlamydia.

Okay.

We are happy to wait until they're ready.

For now could you just show us to the restroom?

Mm-hmm.

You do know that your job comes with a badge, right?

This way's faster. And more fun.

Besides, I badge her, she lets us through.

By the time security leads us to his office,

he's already out the back door.

Plus it's you and me.

What does that mean?

Well, you, I trust with something like this.

I love all my CSIs,

but some of them struggle with keeping a low profile.

Oh, cut 'em some slack.

They didn't all start off as undercovers.

I did not set out to either.

It was a fast track to detective.

There's actually a whole story to...

Huh.

Yes! Yes!

You see how it happened?

Truman Thomas.

Let me guess, this little demonstration

not what it looks like?

Somebody's been busy.

Yes, ma'am.

I've isolated what I think are

the different trails of impact and castoff.

And I've also gotten started in on the math you're gonna need

for that adaptive model.

This is a lot, even for you.

Trying to cross every "T" and dot every "I."

So, uh

how you doing?

I know that, after what happened,

you don't trust me.

Not like you used to.

Well, you did save Allie's life last week.

That ought to count for something, right?

I just want to earn back what we lost.

What I lost.

You know, it's not your trigonometry

or your work ethic that I worry about.

It's my judgment.

RAJAN Who is ready

to do the robot?

Hey.

Hey.

Is now a bad time?

No, no, we're just getting started on the blood spatter.

Well, uh,

we struck out on glass from the crime scene.

Penny and Beau are

sampling every glass bauble you can imagine,

trying to figure out

where that tiny shard in the wound came from.

So I thought I would, uh

come help you guys out.

We could use all the help we can get, right?

Okay. So, I've color-coded the spatter.

Yellow for the big droplets,

what we would normally expect for blunt trauma.

And then the blue,

the tiny droplets that had to have come

from something moving really fast.

Question is, how did the tiny ones get there?

Nope, that's not it. Try something else.

Uh-uh. That angle won't work.

What about from above?

I'm afraid that's not it either.

No, the blood drops are still too big.

Uh-uh, still not enough force.

No, no, no. We're headed in the wrong direction.

Based on these readings,

there's no way a person could punch hard enough

to create blood spatter droplets this small.

There's no way a person could.

You really think he can punch that fast?

We're gonna have to find out.

Sorry, you want to turn on a killer robot?

We're gonna need some help.

You were teaching that robot to kill a man.

Are you trying to tell us it was a coincidence?

I'm not trying to tell you anything.

I have nothing to say. We're just wondering

why you were out here with... Sorry, detective.

I'm not gonna discuss my day.

I have work to do.

Unless you're charging me with a crime,

I assume I'm free to go?

You're free to go.

For now.

Maybe we'll see you later.

How about you, Mr. Thomas?

Me? Oh, I'm an open book.

Care to put that phone away?

High score.

So, how can I help you two ladies?

A man was killed in your factory last night.

Possibly by one of those machines.

We come out here and we see your employee

demonstrating how it was done.

You think that Eve had something to do

with the death of that worker?

Oh, come on.

That's totally stupid.

Eve's a programmer. That was a

proof of concept.

To prove that a bot like Ocho could have done it.

If I didn't know it was totally stupid,

I'd say it sounds like you were hoping

that's what happened.

Well, I would think that was obvious

that that would be optimal.

I'm with you.

I mean, this could be huge.

Huh. She agrees with me.

Oh, the implications would be staggering, right?

Well, I mean,

fate loves irony.

For years, I've been warning the world

about the dangers of sentient AI.

And now, if it's finally here...

"Fate loves irony"?

You've been warning us for years?

About what?

The things you've been racing to build in this very lab?

A man is dead. Yes.

And that's a terrible tragedy.

But what's done is done.

And wouldn't one human life be worth it

to herald the birth

of an entirely new sentient species?

That you helped create. I mean, not just helped create.

I'm the very reason the technology exists.

I've long feared AI.

But if a man must shepherd it into existence,

there's only one man I trust.

You know, I wonder

if LVPD, with our legal resources,

could... help you.

How so? Well,

if we could prove in a court of law that your AI,

your creation, acted on its own...

Yeah, you could open up a few doors to our investigation.

Let us help you prove your breakthrough legally.

It's interesting.

I suppose a sort of alliance could be, uh

mutually beneficial.

Chavez lied to us to our faces.

I just don't get how that doesn't bother you.

Well, when I was at Dow,

I got an offer to be on Undercover Boss.

Seriously? You did?

No, not really. I just thought it'd be cool.

Sample 14's not a match

to the glass at the crime scene.

I know I'm new

to the world of law enforcement,

but isn't this sort of thing,

I don't know, normal?

I mean, didn't Chavez clear everybody?

Yeah, I get it, okay.

You have more perspective or whatever. No.

No, no, no, no, no, no, no. It's not that at all.

There's nothing wrong with you feeling...

Am I interrupting?

No. No, not at all.

You guys know what they did with the robot?

Uh, I think he's in the reconstruction room. Why?

I got us a robot guy.

That's... great.

Welcome to CSI, Mr. Roland.

Oh, please call me Cliff.

Mr. Roland's my dog.

Boy, your lab

certainly has a lot of glass walls

and people in blue coats.

Yeah. I like him.

Follow me. Okay.

Uh, look, I'm happy to help testing Ocho.

Uh, I've actually got another idea for you,

if you'll indulge me. Yeah.

Sure. Okay, so Ocho uses

a complex system of sensors and cameras,

not too different from the...

I didn't even know where to begin.

Well, uh, you need special tools.

Uh, Thomas is insistent

that only our people can open up these guys.

The sensors store data in a board inside.

Ocho's chest. Uh,

if we pop it open, we can desolder

the memory modules and, if you're lucky,

get some lidar info, maybe even some videos.

Doubt you'll find a smoking gun,

since Ocho didn't self-report a problem,

but it's worth a shot.

Speaking of taking a shot at it, ready to get it moving?

Let's do it. And...

Okay. So, we know the robot can do this.

But the question is, can it do that much, much faster, right?

All right.

Let's... find out.

Well, he may be strong, but he sure as hell ain't fast.

He's definitely not moving at the speed of a bullet.

Well, he's definitely not moving at the speed of a Folsom.

This robot could generate enough force to kill,

but his arm doesn't reach the linear velocity

you would need to generate those tiny blood droplets

found at the scene.

Are you okay?

Sorry. Um...

You guys are used to talking about blood and death,

and... I'm still

working through the idea that Robert is...

He was a good man.

And I would like to help figure out what happened to him,

so, um, what's next?

We need to know if there's any way that

this thing could move faster.

Is there maybe a limiter

or something with the software?

I guess I'm not totally sure,

but I'm not controlling Ocho like a remote control car here.

Uh, he uses what's called

"model predictive control."

Um, so I tell him what I want him to do,

and then his learning AI

figures out how it wants to do it.

Wait a minute, so this thing really is thinking?

I always think we've capped out the hardware,

then the AI iterates itself,

and develops new behavior that's more

athletic or coordinated.

Ocho and his brothers

are always surprising us.

Is it just me

or does this thing seem just a little bit more

like the Terminator now?

I mean, I'm not saying

he sped himself up, but

theoretically...

It could've found an inner strength,

like a mother

lifting a car to save a baby,

only malevolent.

You know what worries me?

We don't know how to test that empirically.

All right, that should do it.

There you go.

It's all yours.

Okay, it seems like it's working.

Yeah?

Yeah, there's some timestamped video data here,

so we should be able to see what Ocho saw

right before our victim's time of death.

Wish me luck. Good luck. Good luck.

And here we go.

Hmm.

Get down! Watch out!

Get it, now!

What's going on?

What was that about?

Whoa, whoa.

Be careful, Allie.

What the hell just happened?

None of the breakers are tripped.

Nine machines were processing samples in DNA and Trace.

All of them crashed. It's okay.

We will rerun the diagnostics after the power's back on.

The evidence fridges

aren't getting backup power.

That's all right. Keep the doors closed,

keep the cold air in. Sarah...

Where do you want me? Money cage? Yep.

Better safe than sorry.

We're gonna check the breakers for the building.

And call Vegas P and E.

We need to find out if this is just us,

a transformer, or the substation.

Everybody, breathe.

We got this, right?

Show me.

These are fingerprints from the Selinger break-in case,

marked rush. You had me run them through AFIS,

but they aren't matching up.

With the power out, I can't r... You have a ten-card, right?

Right. You got a magnifying glass.

Mm-hmm. You focus on what you know that AFIS doesn't.

Now, you don't need a machine to run every damn thing, right?

Get to it.

Okay, what do we think happened?

Could be random. It doesn't feel random.

Well, I was down in Reconstruction,

and that robot's eyes turned on right when it happened.

You think there's a chance that thing flipped the switch

on the whole building? How? Not just how,

but why?

That thing is supposed to pick up

screwdrivers and boxes.

It's not supposed to be a damn James Bond villain.

I don't know how a robot like Ocho could power off

an entire building, but it's possible, right?

You know what Sherlock Holmes says,

"When you eliminate the impossible,

whatever remains..."

Okay, well, if it was the robot,

and I'm definitely not saying that it was,

but if it was, its timing couldn't be better.

Thanks to the power surge, our best lead...

Ocho's memory module

has, quite literally, gone up in smoke.

That is not the first time that's happened.

Yeah, you're talking about the surge at the factory.

Wiped out all the cameras just before Robert was killed.

Maybe you should head down to casa de robot,

check out their power system, hmm?

Well, if a human killer is causing these surges,

could be they left something behind.

Let's head down to Reconstruction.

You, me, and Folsom finish what we started.

None of the breakers were popped.

Everything looked normal to me.

Ooh, Catherine and I are headed back to the factory.

You coming with?

No. Max asked me to check out

the power situation here, so, no.

This Chavez thing's really stuck in your craw, isn't it?

Chavez and I aren't besties, but we're friends.

Or, at least, I thought we were.

I look back at this last year,

and how much of it was a lie?

I feel like I'm crazy.

Am I crazy?

You are not crazy.

I mean, you are crazy, but I kind of get it about this.

Well

nothing works.

I hate to admit defeat,

but I am officially out of ideas.

Well, you had some good ones. It was a valiant effort.

Before you go,

the power surge at the factory

the night of the murder,

can you explain that?

They looked at it. Couldn't figure out what happened.

Out of curiosity, who was assigned to look into it?

Uh... I think that was Eve.

Yeah, uh,

anyway, I will

let you guys know if I think of anything.

Thanks, Cliff.

So, I'm open to the idea that

this robot taught itself to hit harder

and faster than we could make it, right?

But if there's no way to test it...

Then we have to rule out everything else.

So then let's get creative, shall we?

What are other possible ways could account

for this unusual blood spatter?

What if the robot's only responsible

for the medium velocity spatter,

and the high velocity spatter

was caused by some other source?

Like an implement of some kind.

Like a club or a

thin pipe or a...

Something like that might explain the glass.

There you go.

Pretty good at-bat, but it's not fast enough.

Turn the hips, squash the bug with the back foot.

Squash the bug? Yeah, turn them hips.

I thought you were a basketball coach.

Yeah, I do 'em all, baby.

Your coworker's just down here.

Really appreciate you showing us down here personally.

Yeah, well, my people have already checked over the system,

so you won't find anything.

But I guess you can get a warrant, so

what choice is there?

What happened to letting us help you prove

your robot really is a killer?

I don't think it's possible.

Yet.

Quite the about-face. I'd say.

What's changed, Mr. Thomas?

I bet your people

came to the same conclusions that we did:

That it's physically impossible for that machine

to have struck the killing blow.

That'd be bad news, huh?

All the downsides of a wrongful death lawsuit.

None of the upsides

of birthing new AI life.

Whatever.

My mind is preoccupied

with far more interesting things right now.

More interesting than one of your employees being murdered?

Gee,

I got to see what's on that phone.

Look, one of my teams, MKD-1...

Eve's team... they suffered

a mechanical issue that set them back a few months.

Now, I'm not ready to say that it was sabotage, but...

Look, I'm needed elsewhere. Sabrina.

Sabrina can help you.

Excuse me.

You know, you expect billionaires

to be rude, standoffish weirdoes,

but I got to admit, that guy is a charmer.

The grid?

That way? Yes, it is.

He told us there were some files set aside for me.

Do you have them?

Of course. This way, Detective.

Hey.

Hey.

Splash of almond milk?

Beau.

You're really getting to know me.

Thanks.

You may not always enjoy me,

but I am your friend.

Ha, ha, ha, ha.

That thing would be way cuter

if its face wasn't a nightmare mask.

The face isn't what bothers me. What you got?

The glass from the crime scene remains a mystery.

None of these was a match? Is that a bong?

We tried everything.

And it gets worse.

I tested the compressive strength

of the glass from the wounds, it's way

too brittle to do too much damage,

even if swung at those speeds.

Well, we're having better luck. I'm getting close to matching

the speed needed to account for the high-velocity spatter.

Close? No, but not close enough.

Folsom is swinging like a walk-on at a D2 school.

And unless our killer was, like, ready to go pro,

I'm kind of skeptical. I don't think there's many

power-hitting first basemen at the robot factory.

No, just a huge pack of nerds. Hey, hey, glass houses.

Now I'm kind of thinking maybe a flexible implement?

Like what? Like a whip?

Maybe a whip? Is a whip crazy?

With those wound patterns?

Uh... Golf club, maybe?

Big graphite driver? They flex.

But the hardest hit to our victim was here.

The skull. And that impact was

an exact match to Ocho's arm and hand.

How is that possible?

Well, I only got close 'cause this bat is long, like a lever.

How could Ocho's arm ever travel that fast?

Ocho's arm could move that fast if it wasn't attached to Ocho.

We appreciate you heading down

so quickly, David. Of course.

Just don't know how my dad's tools will help.

Do you need his fingerprints, or...?

Well, not his fingerprints,

but something almost as unique.

The other day you said sometimes your dad

took his work home with him?

That's right. To do that

he needed this.

Driver bit?

Not just any driver bit.

MKD uses proprietary tools.

This is like a key.

To open a very specific lock.

This is it. Mm-hmm.

The joints, look at this.

Yep. That's our whip.

Would you stop swinging that damn thing, please? Mm. Oh.

Yeah. So that thing, swung hard enough,

could reach a velocity

sufficient to create

that unique blood spatter pattern.

What are the chances that our killer

beat Mr. Cuevas with this arm

as a weapon of convenience... Mm-hmm.

And then reattached it

to the body in order to frame.

Ocho for his crime?

Guys? What'd you got there?

David?

Did your dad wear eyeglasses or contact lenses?

No, he didn't.

Thank you, David.

What you got, Al?

Polymer-hydrogel. Contact lens.

And odds are, if it doesn't belong to our victim...

Then Ocho just gave us a little sample of DNA from our killer.

Heard we're about to have a solve on the Cuevas case.

What's DNA telling you?

Nothing yet.

Should be a minute.

Hmm.

Did I forget your birthday?

Is that it?

Happy birthday, Penny.

Whenever it was.

Can we be cool?

You lied to me.

You lied to all of us.

You reported on us to IAB for a year.

That was...

It was my job.

To report back the truth and,

and the truth I reported was

that everyone in the Vegas Crime Lab was hardworking,

and smart and-and totally honest.

Okay. Great. Thanks for your help.

I know everyone here just assumed

that CSI was in the clear after Hodges and Anson Wix.

But not Max.

You know, she knew what I knew.

That the powers that be still had their doubts

until I proved to them that everything was on the up-and-up.

Look, I'm sure you're right.

Okay? I'm sure everything you're saying is right.

It wasn't that you did it that's crappy.

It's that you could do it.

I just, I thought it was one way

and it's another way.

Well, and what way was that?

I thought we were friends.

That's up to you.

I did lie.

A lot. I'll give you all that about the past.

But we are on the same side, Penny.

So maybe just keep an eye on me in the future.

Notice how the way I work makes your job easier.

Maybe you'll like me better as a coworker.

What is it?

Did we get 'em?

I know who the killer is.

The DNA on the killer's contact is a match.

To Cliff.

What?

But he's been here all day.

Truman Thomas did mention he thought there'd

been some sabotage of Eve's team. She's Cliff's rival,

I gather. Maybe, maybe Robert saw something?

We don't have to guess. We can ask him. Put an ATL

out on him and send a couple squad cars

out to that damn robot factory.

There's no way he's listening to us, right?

He has microphones, but he's powered off.

Hey, Cliff.

Director Roby, hi.

Uh, just checking in.

I heard you called looking for the proprietary bit

to detach Ocho's arm?

I can grab one

and-and head down to you if you'd like.

Well, that'd be great.

I mean, the team's ready now,

if you want to head on down. Sure.

Just curious, why do you need

to take off the arm?

You got to understand, Robert wasn't even

supposed to be on that side of the building.

He, he did his rounds out of order that night.

Go.

It's okay. Just stay with me, okay?

Robert, he saw what I was doing.

The MKD-1 prototype.

Robert saw.

I'm gonna... Cliff?

Cliff?

Find him.

Hey.

Is that Cliff?

Dead.

Penny thinks killed on impact.

Among other weird things, the car's pretty new,

but the airbag didn't deploy.

Thank you.

Only yaw marks.

No deceleration.

He didn't hit the brakes.

Maybe the brakes were out.

We're not thinking the AI somehow did this, are we?

Uh... Hey, old camera.

We'll run it to confirm, but what do you want to bet...

That's the source of the mystery glass on our victim.

Can't wait to see what's on the film.

Well, you're gonna have to.

Wait, I mean.

If there were any film in here, it's long gone.

The CSIs tell me your help made the difference,

bringing those tools when you did.

It made a difference to me, too.

I mean, I knew he had stuff in his garage, but

going in there and digging through it,

finding his tools.

I loved my dad, but...

I didn't take him seriously enough as an engineer.

You mentioned your dad thought he was unfairly

left off a patent for the robot's hand and arm?

I've been going through MKD's files.

Your dad was a huge part of the project.

This is a patent lawyer.

Friend of a friend, owes me a favor.

If you'd like

she'll fight for your dad's claim on contingency.

Thank you.

For the truth, I guess.

About my dad, too.

I hear you wanted to talk to me?

So you were right.

As always. I stepped back.

Looked at the bigger picture. Mm-hmm.

Our suspect had been running from the police

while high on methamphetamine.

When he attempted to open the window,

he squeezed hard enough to deform his fingerprints.

Manually adjusted for that, and we got him.

Come on, Zoey. Now come here.

You remember this next time you want to farm out

your job to something with an on/off switch, okay?

Mm-hmm. Get out of my office.

Good job. Zoey.

Hey. Boss.

How are you doing?

So, uh,

you're checking in on me now, huh?

I just know this case was weighing on you.

And I wanted to touch base.

I hope you'll rest

a little easier now that it's closed.

I mean, we got justice.

Guess you'd call that a partial confession, huh?

You think Cliff knew more than he shared

before he, uh... you know.

It's more than that, it's just, I...

I see this man

just lying on the floor dying,

with machines moving and working all around him.

Well, we've only got good machines here.

The ones that help you catch the bad guys. Don't get me wrong.

I like my EZ-2 and my GCMS, but I...

I do prefer my people.

Flawed though they may be.

Good night, boss.

Hey, you want me

to get this thing out of here? Uh, no.

We'll send him back when the case is officially closed.

Okay?

All right.

For now, you stay put.

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