- Where are you going? - Paris.
You have orientation tomorrow.
You're going to be safe 3,000 miles away.
I'm here to guide you, not push.
not prod, guide.
We can't leave.
- Who are you? - Someone who recognizes raw talent
when he sees it.
He's gaining too much ground on us, we should be moving faster.
You're talking like an amateur.
An amateur that killed a Hellhound.
Who was wounded and bleeding.
- And I took out a werewolf. - Also injured and alone.
Let's not mistake luck for skill.
The longer we wait, the weaker he will be.
And the more time he'll have to find help.
"The greatest victory is that which requires no battle.”
Sun Tzu. Got it.
Can we at least keep moving?
Did you hear that?
It's him.
No. No.
No!
- You swear you weren't cheating? - I swear to God.
Fine. One more game.
I have to get back to studying.
Uh, you need any help with anything?
What, you wanna help me study?
I'm your best friend, I can help you study.
Nah, go home, dude.
Uh... You, you mind if I...
I mean is, is it cool if...
What, you wanna stay over?
Yeah, is that all right?
I mean, yeah, if you tell me why.
What do you mean why? Maybe I just wanna hang out.
What about Corey?
Nah, he's at a library study group.
We haven't had a sleepover since we were 10.
What's going on?
You remember that body that we found?
You know, the one without the face?
I can't get it out of my head.
Yeah, me, too.
No. Dude, I'm...
I mean, I, I literally
can't get it out of my head.
You know what after images are?
Uh, you mean, like, when you look at a light bulb
and when you look away you still kind of see it?
Yeah.
Well, there's this more extreme version called palinopsia.
It literally means "seeing again.”
I mean, the image just stays with you...
And you see it again.
And again.
So, where are you seeing the body?
Everywhere.
Lori...
I found this. It's Brett's,
and he's missing, and I heard gunshots.
- How do you know this is his blood? - Because he's my brother.
I's mine, too.
Get it together, Melissa.
Oh, God!
Hey.
I thought you were hanging out with Liam tonight?
Brett's missing.
"Missing," as in no one can find him and they're really worried?
"Missing," as in his sister found blood all over his lacrosse stick.
Why's our missing always involve blood?
Because it's Beacon Hills.
Come on, we're meeting Lydia.
- How come? - Because we're gonna go find him.
You all right?
Yeah, why?
Just checkin'.
No, it's okay, I don't see anything.
Huh?
- Nothing. - Quiet! Please.
- Sorry. - Sorry.
She ever tried this before?
Initiating a premonition?
A few times.
They usually find her.
How will it help us find him?
I don't know.
But if Brett's dead, I think she'd already know.
- Do you think it's working? - It might if you stop talking.
- Sorry. - Sorry.
Here.
I think he set a trap.
- He's fighting back. - And now we know he's alive.
But he's still hurt. We need to find him, he needs to know we're here.
You want the hunter to know we're here, too?
He's new. We can take him.
What if Brett howls back? He'll lead the hunter right to him.
No, we could find him first.
There's no human that can track sounds faster than we can.
And we've got the advantage, we've done this before.
We know what we're doing, guys.
- How come I can't catch his scent? - He's masking it.
Can someone tell him not to?
He went this way.
His trap didn't work.
Maybe this hunter is not such an amateur.
Or maybe he's learning.
Does anyone speak Chinese?
My phone does.
LXVIILI...
No, it's a Roman numeral, "48."
"68." That's what the Chinese says, too.
"Er."
"Er." "Er," what?
Erbium.
The atomic number for Erbium is 68.
What if this whole thing just says "68"?
- "68" what? - I have no idea.
Okay, so what do we try next?
I'm going back to where my last premonition was.
And I'm going alone.
I'm surprised you called me.
Well, someone had to call someone.
I need a tissue sample from a body.
I was hoping you would go in there and get it for me.
It's a dead body? Right?
Mostly.
Mostly?
Maybe you should just go see for yourself.
That's not just a dead body.
You felt it, too, didn't you?
- Yeah. - Fear?
Terror.
The trail ends.
The {rail ends when you've found him.
Remember what I told you?
Look for signature prints, look for heel marks.
And why the heel marks?
Because the heel comes down first. It bears all the weight.
So what do you see?
No prints, nothing.
And that tells you what?
It's a misdirect.
Good. And what does that tell us about our young wolf?
He feels us closing in on him,
he wants to escape the pressure.
Don't ask yourself what a teenager would do,
ask yourself what an animal would do.
An animal would run and hide.
And where do wounded animals go to hide?
They go underground.
65, 66,
67,
68.
I've seen it, too.
What are you talking about?
How he shows up out of nowhere.
Don't pretend you haven't noticed.
I'm not sure what I've seen.
Do you wanna be sure?
Do you really wanna know?
I know a way.
The trail's gone.
Uh, maybe he just stopped bleeding.
God, I think we should split up.
Lori and I go this way, you guys go that way.
- Or maybe we go in four directions? - We should stick together.
We have the advantage, it's four against one.
Not if we split up.
Right. I've been doing this the past three months without your help.
I think I can make a decision.
Well, if you're deciding to do something stupid and die, then go ahead.
It's one hunter, one amateur who doesn't know what they're doing.
Scott?
The hunter. He's covering his tracks.
There's another.
- Two of them? - Maybe more.
How many hunters have you seen out here before?
A lot.
Still wanna split up?
We can deal with it. We just need to find Brett's trail.
No, we don't.
Rock balancing. Satomi taught us.
It's him, and I know where he's going.
- He's been poisoned. - That's why he's not healing.
What if he only has a few hours to live?
- If we howl, we can find him. - That's too risky.
Who cares about the risk? He could be dying.
He's still moving.
We just need time to think.
I need him to know that I'm here, that I'm coming for him.
Yeah, Lori's right. He has to know we're here.
Liam, wait!
- How did he get behind us? - He didn't. That wasn't Brett,
that was a werewolf making a mistake.
His friends are coming for him?
It's safe fo assume they're coming for us.
Why are we going back? What if there is a pack?
Oh, there is. We can count on it.
Wait, how many are we talking about?
That's not the right question. You're thinking from a place of fear.
I'm thinking logically and mathematically.
Two of us against too many of them.
Try thinking strategically.
That's Scott McCall's Achilles' heel.
Like most teenagers, he thinks with his heart.
So what's our strategy?
Right now?
Divide and conquer.
Okay.
There's a perfectly logical explanation for this,
- but if it moves... - I'll empty a clip into it.
Sorry.
Talk.
- What? - You said there's a logical explanation.
- Tell me what it is. - You mean to distract myself?
And me.
Okay.
Okay, okay.
Okay, sure.
It could be a toxin
or gases, chemicals released by the body.
- This thing? - Yeah.
Carbogen,
carbon dioxide and oxygen gas
mixed can, uh, make your brain think that you're suffocating,
and then your body reacts with intense anxiety and fear.
What else?
Any noxious smells can induce fear.
Or even infrasounds,
sounds below 20 hertz.
Just do it.
- Yeah. - Melissa, now.
Okay.
Melissa!
I got it!
- Why didn't he answer? - Maybe he didn't hear us.
Maybe, he can't.
Lori, no!
- They knew we were coming. - Don't talk,
just heal, and let us figure this out.
They've been a step ahead of us the whole time.
I'm sorry, but I can't wait around. We have to go.
We still have the numbers, three-to-two.
- We're faster, and we're stronger. - They're smarter.
I don't care who's smarter or faster or whatever,
my brother's going to die.
Something's not right.
That arrow, the trip wire, the poison.
- These aren't amateurs. - But they've never fought us before.
And you've never fought hunters, Liam. We need to stick together.
I need to go.
No, you're not going alone. I'll go with you.
Liam, you don't know who they are or what they're capable of.
Look, I know who we are.
We never give up, especially when it's someone innocent,
when it's someone alone, when it's one of our friends.
Okay, go, all of you. I'll catch up.
Go, Malia. Go with them.
- I just need a minute. Go. - You just need to shut up.
I think the scary part's over, this is just the boring science part.
I'm not gonna leave you alone with that thing.
I bet you wanna know what scared the hell out of you.
I'm curious.
Let me guess, not very much.
Very little.
What is it?
It's nothing.
No DNA, no cell structure, there is nothing here.
How is that possible?
It's not.
Which way? There's gotta be something.
Did he leave anything for you to find, like, like a signal, or, more rocks?
I don't see anything.
I don't hear anything.
We'll find something. He's gonna be okay.
How do you know?
‘Cause, 'cause he's strong.
He's really strong.
He's knocked me down on the lacrosse field more than once.
Now, when I see him coming,
I do everything I can to get the hell out of the way.
Brett actually started playing lacrosse for me.
For you?
I didn't have any friends at my old school.
Devenford Prep needed lacrosse players,
and Brett practiced all summer.
And he got a scholarship and told them that
they had to take me if they wanted him.
Hey, we're gonna find him.
Do you smell that?
It's... It's sour.
It smells like something's rotting.
I think it's poison.
That's how we'll find him.
It's been too long.
Don't worry,
they'll have to come this way.
How do you know?
Well, I wouldn't be down here if I didn't know exactly where I was.
Why did you let them go?
Because this isn't about killing just one werewolf.
68 miles,
68 degrees...
Route 68?
Lydia will call us when she has something.
Yeah, I just wish I could be there.
You know, to help her...
Be alone?
Yeah, good point.
Hey, Nolan.
Studying for bio test?
Trying. Yeah.
Um, trying to understand
how organisms evolve and change.
Like, how a fish can turn into an alligator.
Uh, alligators aren't fish,
um, they're reptiles.
They hatch from fertilized eggs...
And isn't the test on DNA versus RNA?
Do you think DNA changes?
If it's damaged, yeah.
A change in DNA could cause cancer.
So organisms can change,
organisms change.
They can change right in front of your eyes.
I don't think this is on the test.
Yeah. I wonder if organisms can change,
and then change back.
Like, they can be two things at once.
Parroffish are protogynous hermaphrodites,
both male and female.
Um, hawkfish change and change back.
As well as earthworms, of course, but...
That's definitely not on the test,
or any high school test.
I wonder if any of us have changed.
And if we did, would there be any way to tell?
Like a DNA test?
I was thinking a different type of test...
ow!
What the hell is wrong with you?
Look, look at him. Look!
Wait, he's fine.
It's just a scratch.
How did we miss that?
We underestimated them.
But how did they rig a trap that big with us down here in the tunnels?
They didn't. They rigged it a long time ago.
But we've been through these tunnels a hundred times.
And whoever this hunter is,
he's been through them a hundred more.
And he knew we were here, he was waiting for us, tracking us.
He was prepared and we weren't.
There aren't a lot of people who spend time in these tunnels.
Who was the last hunter we saw down here?
Argent...
And Gerard.
The trap wasn't lethal.
It slowed us down.
And split us up.
He's planning something else, another trap.
And Liam and Lori are walking right into it.
Sorry.
Hey, 68!
Hey. Hey.
Do you know anything about Brett?
- Who? - Brett Talbot.
Lacrosse player. What happened to him?
I don't know any Brett.
You're one of them, aren't you?
One of who?
They all look the same, are you sure we're going the right way?
I'm positive. I've gotten lost down here before, more than once.
- Just follow the scent. - I hate that scent.
Wait.
I hear something.
It sounds like...
A heartbeat.
Brett!
You found the rocks.
Yeah, I found the rocks.
- Liam. - Hey, we're gonna get you out of here.
You're a dumbass
- for doing this. - Is that your way of thanking me?
No, that's my way of calling you a dumbass.
But thanks.
- They're coming. - Okay, go, I'll hold ‘em off.
Go, go!
There's nobody here.
Lori.
Seems like we're letting a lot of opportunities pass us by.
I know we only just met,
but I'm gonna have to ask you to trust me a little longer.
I'm generally not a very trusting person.
That's why you are gonna be good at this.
Good at what?
I thought we're trying to hunt down a werewolf.
Anyone can learn to hunt one werewolf.
We are building an army.
An army?
To hunt them all.
I'm sorry.
Let me try again.
No, no, no, it's just not working.
I don't think that we should waste any more time.
Quiet.
Why isn't it working? How come I can't take your pain?
It's okay.
No, it's not okay. None of this is okay.
We should've called Stiles.
We promised we wouldn't.
It was a stupid promise.
We almost lost him last time.
Yeah, and now I'm gonna lose you, too.
You? You're gonna lose...
Yeah, me. All of us. You know what I mean.
Yeah, I think so.
And, you know, Stiles wouldn't be okay with this.
If he knew all the things that we were trying to do without him,
he'd, he'd kill us.
I think he'd be okay.
With this?
With us...
What do you mean?
No, no, no, no, no. Don't pass out.
I don't think you're supposed to pass out.
Plus, I'm really confused by what we're talking about, so, Scott, wake up.
Scott?
- What happened? - It worked.
Now, you let me know if you wanna upgrade
to something with a little more kick.
I... I think this is good enough for now.
Uh, you let me know if you remember anything about your family history
that deals with any of the bizarreness that we've been dealing with.
Bodies with no DNA?
Or bodies with no DNA that somehow make you feel terrified.
I don't know if the body's actually causing the fear.
Maybe it's just amplifying it?
You still feel it, don't you?
Yeah, it's like something crawling on the back of my neck.
Me, too.
- Well, if you find anything, uh... - I'l call.
Great.
- Or I'll call if I remember anything. - Okay.
- Or not. - Okay. Okay.
I should've called.
But you didn't, and that's okay.
- Should I have called? - Did you wanna call?
Yeah, I wanted to call.
-Sodidl. - Good.
- Yeah. - Yeah.
Okay, good.
That is good information to have.
I should go.
You don't have to go.
It was about Nolan.
Would've been nice to know before he attacked me.
No, he wasn't trying to hurt you.
He was trying to expose you.
That was a test.
Well, you definitely failed.
It was a geyser,
half the library staring. You didn't even have a scratch.
Yeah, I remember, because it was, like, five minutes ago.
- Why would Nolan do that? - He's afraid.
- Of me? - Of us.
I thought your premonition was about people turning on each other?
I was wrong.
They're gonna turn on us.
And I think it's already started.
Just a little further, we're almost out of here.
Lori, no!
Lori, wait!
No...
Close your eyes.
I couldn't take away his pain.
Liam.
You set this up.
Of course I did.
Is this part of the lesson?
Everything's a lesson, every moment with me.
And if there's one thing you learn today, it's this,
the best way to build an army is through fear.