Previously on "Teen Wolf":
- What the hell was that? - I don't know.
It's like you're immune.
- They're not gonna split us apart. - Not us.
Two's not enough for Derek.
I know he needs at least three. So who's next?
Why does there have to be a next when we've already got you?
I'm not part of your pack.
They're coming back, so we don't have much time to talk.
- What is that? - Rubbing alcohol.
You don't want it to get infected, do you?
You will heal the same, just not as quickly, because of Derek.
Okay, how do you know all this?
- Actually, how do you know anything? - It's a longer story.
What I can tell you, is that I know about your kind.
Your kind...
I can help.
But this...
This is something different.
- Well, do you know what did it? - No. But the Argents will.
And this is the crucial part:
They'll have some kind of record or book.
It'll have descriptions, histories, notations,
- of all of the things they've discovered. - All the things?
How many different things are there?
I'm starting to think I need to buy a more prominent "closed" sign.
Hello, Alan.
It's been a while.
The last I heard, you had retired.
Last I heard, you followed a code of conduct.
If you hadn't noticed, this body is one of ours.
I did, I also noticed the gunpowder residue on his finger tips.
So don't assume I'll be swayed by your philosophy
just 'cause I'll answer a few questions.
He was only 24.
Killers come in all ages.
All ages, sizes, shapes.
It's the last one that concerns us.
How about you tell us what you found?
See this cut?
Precise. Almost surgical.
But this isn't the wound that killed him.
This had a more interesting purpose.
- Relating to the spine? - That's right.
Whatever made this cut, it's laced with a paralytic toxin
potent enough to disable all motor functions.
These are the cause of death. Notice the patterns on each side?
- Five for each finger. - Each claw.
As you can see, it dug in,
slashed upward, eviscerating the lungs
and slicing through the bone of the rib cage with ease.
- Have you seen anything like this before? - No.
Any idea at all what killed him?
No. But I can tell you it's fast, remarkably strong,
and has the capacity to render its victims essentially helpless within seconds.
If you're saying we should be cautious,
we get it.
I'm saying you should be afraid.
Be very afraid.
Because in the natural world, predators with paralytic toxins
use them to catch and eat their prey.
This prey wasn't eaten.
That means whatever killed him only wanted to kill him.
In fact, killing may be its only purpose.
What do you think you're doing?
All I needed was a starter.
Yeah, but it looks like your whole exhaust system's gotta be replaced too.
Why do I get the feeling you're slightly overestimating the damage?
It's probably gonna run you around, like, 1,200, parts and labor.
Are you kidding? This thing doesn't even have a catalytic converter.
And, yes, I know what a catalytic converter is.
Do you know what a limited slip differential is?
No.
Yeah, could run you more, like, 1,500.
Okay. Just finish.
I'll be back here... seething with impotent rage.
Nice. Real sanitary.
Quality establishment you're running here.
Figures.
What the...
Help me!
Help!
Help me!
No!
9-1-1, what's your emergency?
I didn't mean to scare you.
It's okay, I was just...
- Expecting someone else? - Yeah...
I mean, no. No, definitely not.
Good.
Then we can talk for a minute.
Thanks. Don't want to drop that.
I'd be lost without it.
When I was your age, I didn't even take vitamins.
Now, I'm choking down a cocktail of pills three times a day!
But, I do what my doctor tells me, because I trust him.
Trust is a commodity our family holds very high, you know?
And my daughter, well, your aunt Kate,
died doing what she thought was right.
Her intentions may have been a bit misguided.
A bit?
I like that.
You remind me of her.
She challenged me too.
Is that what you want me to do? Challenge you?
I want you to trust me.
You're gonna find yourself put in the position
where you question the trust of people close to you.
Even your closest friends.
And when that happens, you have to know
the trust you never question is family.
Can I trust you, Allison?
- Yeah. - Not "yeah"!
Speak with conviction!
Yes or no?
Yes!
You can trust me.
I told you, I just walked in and I saw the jeep on top of the guy, that's all.
What's wrong with your hand?
Nothing. Can I just get out of here now?
Look, if there's something you don't think you can tell me...
- You think I'm lying? - No, of course not.
I'm just worried about you.
Now, if you saw someone do this,
and if you're afraid that maybe they're gonna come back
and make sure you don't say anything about it...
I didn't see anything.
At all.
Can I go now, please?
Sure. But not your jeep.
We're gonna have to impound it. Sorry, kid, evidence.
I'll see you at home.
Right, well at least make sure they wash it.
Scott?
- You okay? - Yeah.
You were right. It's not like you.
Its eyes were almost... reptilian.
But there was something about them.
What do you mean?
You know when you see, like, a friend in a Halloween mask,
but all you can actually see are their eyes,
and you feel like you know them, but you just can't figure it out who it is?
Are you saying you know who it is?
No.
But I think it knew me.
Does anyone want to try not being completely predictable?
That's the last time you do that.
Why, 'cause I am a Beta?
No. Because I have someone else in mind for you.
Are we done?
I got about 100 bones that need a few hours to heal.
Here?
101.
You think I'm teaching you how to fight? Huh?
Look at me!
I'm teaching you how to survive!
If they wanted us dead, why aren't they coming for us now?
What are they waiting for?
I don't know.
But they're planning something. And you, especially,
know that's not our only problem.
Whatever that thing is that killed Isaac's father,
I think it killed someone else last night.
Until I find out what it is, you all need to learn everything that I know.
As fast as I can teach you.
Time to get up.
Go away.
You're going to be late for your appointment with the school counselor.
Remember, we have a deal.
Remember, I told you I was fine.
Lydia, please...
What did you do?
Oh, my God, what did you do to yourself?
Lydia, sweetheart.
Why did you do that?
Lydia.
- Nice gloves. - Thank you.
So, what's your brand of psychosis?
Really?
We're both here for something. We don't have to be ashamed of it.
I have an acute phobia of people prying into my personal life.
You?
Compulsively drawn to cute but narcissistic girls.
Are you ready, Lydia?
I'm so sorry about the other day.
I'm trying.
We'll get through this.
Uh, I know, because I love you.
I love you more than... Oh, my God!
You and Allison just have to find a better way to communicate.
Come on!
You're the only one that we can trust. Is she coming to the game tonight?
Yes, okay? Message complete.
All right, now, tell me about your boss?
He thinks that Allison's family keep some kind of records
of all the things that they've hunted. Like a book.
He probably means a bestiary.
- What? - A bestiary.
I think you mean bestiality.
Nope, pretty sure I don't.
It's like an encyclopedia of mythical creatures.
How am I the only one that doesn't seem to know anything about this stuff?
Okay, you know, you're my best friend, you're a creature of the night.
- It's kind of like a priority of mine. - Okay.
If we can find it, and it can tell us what this thing is...
And who.
- We need that book! - We need that book!
You're not even French, are you?
French-Canadian.
Which means you're a Canadian who speaks French.
And seeing as I'm placing my mental health in your hands,
how about you tell me what, as a French teacher,
qualifies you to be a guidance counselor?
I have a masters in behavioral psychology,
and have done over 300 hours of field work.
Ça va bien.
If you're really fine, what are you doing here?
Appeasing my parents so they don't take away my car keys.
Have you talked to your friends about what happened to you?
Yeah, they're great.
Totally supportive.
Do you trust them?
Implicitly.
Good. But still be cautious.
Why? Because sometimes people closest to you
can be the ones holding you back the most?
Indeed.
Did you read that somewhere?
I don't know.
Maybe I heard it.
Well, sounds like whoever said it left an impression.
- Hey, I need to see if you can brighten the resolution on this. - Sure.
Whatever you find,
you need to keep it to yourself. Got it?
What's on it?
It's just me in my room...
- in bed. - I'm supposed to watch you in bed?
You remember all the times I told you you're not my type?
Just do it.
Oh, and FYI...
I'm everyone's type.
- I think you mean... - No, I mean bestiary.
And the two of you, I don't want to know what's going on in your heads.
Okay. Can you describe this thing?
It's probably, like, a book. Old, worn...
Like, bound in leather?
Yes. Seen her grandfather with a book like that.
Where does he keep it?
She says it has to be office.
Drug dealers have been using disposable cell phones pretty successfully for years.
My parents check every call, email and text message I send.
- Trust me, they'd find it. - All right. Can you get the book?
Not without his keys.
I need to warn you, by the way.
You might need to be a little patient with me.
- How come? - I'll probably have a lot of questions,
seeing as I've never actually seen a lacrosse game before.
What the hell is this? Dude, I thought I could trust you.
Relax, it's my camera, okay? He just needed to ask me some questions.
- Matt's the one who found it anyway. - Found what?
There.
There, what?
It's an edit point. It's been looped. Two hours' worth.
- What does that mean? - That means there's two hours of footage...
missing.
Come on! Is that thing even a teenager?
I wanna see a birth certificate!
Who or what is that genetic experiment gone wrong?
Eddie Obomowitz, Coach.
They call him "The Abomination."
Oh, that's cute.
McCall. What the hell are you waiting for?
This is the semi-finals. Bring that roid-head into the ground.
Me? You're the one who said that I was a cheater.
And that freak of nature being on the field is fair?
- Do something. - I can't.
Not while Allison's grandfather is here.
I knew I should have brought a warmer jacket.
You're cold. Here, take my coat.
- Are you sure? - Yeah.
Here.
Put that on you. All right?
Good God! Is it always this violent?
I can't feel my legs.
- He belong to you? - No, mine is still on the field.
While I'm here really wishing that he would have stuck with tennis.
Are you the yearbook photographer?
No, I just take pictures.
Just lacrosse or other things?
Anything that catches my eye.
Hey, Lydia, what's wrong?
- Lydia, come... - Just go away.
- What's wrong? - Look, I don't need anyone seeing me cry.
Oh, come on, Lydia.
Look, you shouldn't care if people see you cry, all right?
Especially you.
Why?
Because I think you look really beautiful when you cry.
How many fingers am I holding up?
- Four? - Say two.
Two?
Perfect. Get out there. Come on! Get out there and have a stick.
You're still short one player, Coach!
Where's Stilinski?
You! You!
You play lacrosse?
Uh-uh. Derek won't like this.
Yeah, but I will.
Yeah!
We got ourselves a player!
You're gonna think I am crazy.
Lydia, if you trust me on anything, you can trust me on this.
There is nothing that you can say to me that will make you sound crazy.
Literally nothing.
Can you just give me five minutes?
I know, I'm sorry, just... But just stay here.
Continue crying or not crying if you want, or whatever works for you.
But just stay here and I'll be right back, okay?
And then we can talk. About anything. Yeah?
Okay, just five minutes.
Book, book, book.
There's no book.
Nothing here.
Oh!
Hello, Stiles.
Yeah!
The bigger they are...
the bigger they are!
Ah. Yeah.
- Stiles. - Derek.
What did you see at the mechanic's garage?
Several alarming EPA violations that I'm seriously considering reporting.
Holy God.
Let's try that again.
Yeah!
You need to get off the field. Your eyes... Someone's gonna see you.
Give it to McCall! Give it to McCall!
Scott, go!
Go, Scott, go!
Oh, my God.
I'm fine, I'm healing. It's okay.
The book!
It's not in his office. It's gotta be at the house.
Scott, your leg. Oh, my God, your leg is broken.
Not for long.
- Don't move. - Scott...
It's okay, it's okay.
I'm fine, I'm fine.
I could have sworn I literally heard bone breaking from where I sat.
- Heard it? I felt it. - Seriously, guys, I'm fine.
- We should go. - Hold on.
I wanna ask him one more thing.
All right, the thing was pretty slick-looking.
Skin was dark. Kind of patterned.
I think I actually saw scales.
Is that enough?
Okay? 'Cause I have somebody I really need to talk to.
All right, fine. Eyes.
Eyes are...
yellowish and slitted.
It has a lot of teeth. Oh, and it's got a tail, too.
Are we good?
What?
Have you seen it?
You have this look on your faces like you know exactly what I'm talking about.
Run!
Derek, your neck.
Come on. Come here.
Where is it? Can you see it?
No, just hurry.
Call Scott!
Stiles, you son of a...
Where did it go?
Where is it? Do you see it?
No.
Okay, maybe it took off.
Maybe not.
Oh, good, you're back. Dinner's almost ready.
How was the game?
Why don't you ask the star player?
Hi.
All right.
Why is everyone so quiet?
Is it that uncomfortable that they dated?
Did you ask them if they'd be uncomfortable?
Okay, I know it's been a few centuries since I was a teenager,
but even back then, we dated and broke up all the time.
We're fine.
Right, Scott?
Totally fine.
Then why did you break up?
She... dumped me?
- Will you get me out of here before I drown? - You're worried about drowning?
Did you notice the thing out there with multiple rows of razor-sharp teeth?
Did you notice that I'm paralyzed from the neck down in eight feet of water?
Okay.
I don't see it.
Wait, wait, wait! Stop, stop!
What's it waiting for?
No offense, Scott.
But I think maybe Allison felt the two of you were just growing apart.
As if the father's opinion isn't biased.
How do you know they weren't as passionate as Romeo and Juliet?
Romeo and Juliet committed ritual suicide.
They could have used a little less passion.
Can we please talk about something else?
Brilliant idea.
Scott?
How about you help me grab desert from the kitchen?
Do I need to fill you in on the details of what would happen to you
if he found out what we all know?
I'm kind of wondering what would happen to you, actually.
Well, it wouldn't be very good for me.
But then, I'd have plenty of chances to redeem myself.
And that... wouldn't be good for you.
Wait, do you see that?
I don't think it can swim.
Do you mind if we are excused?
There's actually some notes from English I need to go over with Scott.
I'm not so sure it's appropriate.
Okay, I'm the one that's supposed to be old-fashioned here.
The two of you, go.
Come here. Come here.
Hurry!
There goes that plan.
Wait. Actually...
Let me try something.
Oh, my God.
Do you wanna hit a few banks later?
"Salmon moutarde crème fraiche"?
- What is this? - A recipe.
It's a cookbook.
Two days to prepare. But worth it.
Okay.
Okay, I don't think I can do this much longer.
No, no, no! Don't even think about it.
- Could you just trust me this once? - No!
I'm the one keeping you alive, okay? Have you noticed that?
Yeah. And when the paralysis wears off,
who's gonna be able to fight that thing, you or me?
That's why I've been holding you up for the past two hours?
Yup. You don't trust me. I don't trust you.
But you need me to survive, which is why you're not letting me go.
Stiles!
- Shut it off. Shut it off. - I know, I'm sorry.
- Scott! - I can't talk right now.
Tell me you got him!
Without it, we have no idea what this thing is.
Where else do we look?
What haven't we thought of?
I don't know, maybe it's not a book.
Something else he keeps close to him.
I know where it is.
Principal Argent. Gerard.
Mr. and Mrs. argent, thank you for dinner.
I just realized that I have to pick up my mom from work.
I don't get it. What's not to like?
Stiles, where are you? I need Gerard's keys.
There's a USB drive on it. That's the bestiary.
I can't stay up any longer. I need something to hold on to.
Is that even a language?
How are we supposed to figure out what this thing is?
It's called a Kanima.
- You knew the whole time. - No.
Only when it was confused by its own reflection.
- It doesn't know what it is. - Or who.
What else do you know?
Just stories. Rumors.
But it's like us?
It's a shape-shifter, yes. But it's not right.
It's like a...
An abomination.
Derek!
We need to work together on this. Maybe even tell the Argents?
- You trust them? - Nobody trusts anyone!
That's the problem.
While we're here, arguing about who's on what side,
there's something scarier, stronger and faster than any of us,
and it's killing people!
And we still don't even know anything about it!
I know one thing. When I find it...
I'm gonna kill it!
Don't move.
Even though I can practically feel the tissue around the blade already trying to heal,
you never know with a Beta.
Besides,
we'd lose this perfect picture.
The kind old grandfather embracing his favorite grandson
after hearing good news from the doctor.
That's right.
I can play the nice, doddering grandpa
who likes to cook and tell stories and be sweet and charming.
And trust me,
I can do it far better than you playing average broken-hearted teenage boy!
Are you listening?
- Yes. - Perfect.
Now, you're gonna do me a favor one of these days.
And you're gonna do it because if you don't, this knife goes in her.
Scott?
I truly believe that it's so much easier
when bad things don't have to happen to good people.
- Don't you agree? - Yes.
Hey there.
You okay?
Yeah, fine.
Everything's fine.