- You wanted to see us?
- Yeah.

Gonna be leaving town
for a little while.

Vacation?

That's what I'd like
everyone to think.

Captain Harden will take over
while I'm away.

Does this have to do
with your brother's death?

Maybe.

Now if you receive
any communication from me

while I'm away...
text, email, otherwise...

just ignore it.

It won't be me.

If I do need to contact you,

I'll do it indirectly
through Rosalee.

You in some kind of danger?

I would assume so.

Is there anything
we can do here?

Yeah, if anyone asks,

I'm having a wonderful time
in Tahiti.

But why are we coming here
so late?

Father Paul is going to try
and help you, okay?

You're gonna be just fine, son.

He's not gonna give me a shot
like the doctors, is he?

No. No, honey.

The monsignor is ready for you.

Sorry, monsignor...

They're here.

Bring them in.

Daniel, I'm so glad
you're here.

Now there's nothing
to be afraid of.

How are you feeling?

Okay.

You know I'm going to try
to help you.

You understand that, don't you?

All right.

Everything's
gonna be okay, son.

We are gonna be right outside.

But I wanna come with you.

No. No, you have to...

you have to stay here
with monsignor Paul.

Now, you know him.
There's nothing to be scared of.

I don't understand why
at least one of us

can't be in there with him.

Here.

Come here.

It's going to be okay.

It's going to work.

- What if it doesn't?
- It has to.

We have tried everything.

We haven't tried this.

Pater noster, qui es in caelis,

sanctificetur nomen tuum.

Adveniat regnum tuum.

Fiat voluntas tua,
sicut in caelo et in terra.

I wanna go home.

It'll be okay, Daniel.

Et dimitte nobis debita
nostra sicut.

Hold him!

Et nos dimittimus
debitoribus nostris.

Tie him
so he doesn't hurt himself.

Et ne nos inducas
in tentationem,

sed libera nos a malo.

- What was that?
- We better get in there.

Et ne nos inducas
in tentationem,

sed libera nos a malo.

Let us in!

Open! Open the door now!

Open the door now!

26-year-old male,
identified as Mathew Bard,

was found unconscious.

Seminary student
working here at the church.

That's him.

Inside we've got the body
of monsignor Paul Dobbs.

- Monsignor Paul is dead?
- Yeah.

And not of natural causes.

He's been here
as long as I can remember.

We have a missing boy.
His name's Daniel Keary.

Those are his parents.

They're pretty shook up.

They don't know what happened
to their son.

Where did it all go down?

Back here in the anteroom.

There's an open window inside.

We think the boy
went out that way.

I've got officers
on the street.

The dad was pretty frantic
when we got here.

He'd been looking all over.
I called in an apb.

- How old's the boy?
- Nine.

Parents forced the door open
after the whole thing went bad.

And by "whole thing",
I mean what apparently...

Was an exorcism.

An exorcism?

Parents called 911.
Door was open when we got here.

Same with the window.

Where'd you find
the seminary student?

Photo of the scene
as we found it.

- Hmm.
- Who else was in the room?

According to the Kearys,
just their son.

Can a nine-year-old boy
do this?

Maybe the adults
attacked each other.

It took a lotta force
to do this.

Well...

The parents were first
in the room.

You think they're on the level?

Hold on.

You hear that?

What?

Daniel...

I'm Detective Burkhardt.

You okay?

You're safe now.

You wanna come out?

Your parents are
in the other room.

You want them to come in here?

Yeah.

I'll get them.

You wanna tell me
what happened?

Did those men hurt you?

All right,
I'm gonna untie that rope

from around your wrist, okay?

Okay.

Mom!

I wanna make sure
that he doesn't see that.

Come here, baby.
Come here.

- Oh, God, Tom.
- It's okay. He's okay.

He's been through
an enormous amount of stress

for a nine-year-old.

His immune system has been
radically stressed,

his platelets are down,
his white count is elevated.

We'll run panels again
in another 48 hours,

see where he's at then.

Preliminaries at the scene

indicate a fair amount
of force and violence.

We're not sure yet
who's responsible,

but we wanted your staff
to know.

How long
before we can talk to him?

He's been sedated
since arrival.

We'll bring him out gradually.

Give us 24 to 48 hours.

Daniel just seemed
to change over night.

About a year ago...

He went from this nice,
sweet kid...

To a boy that
I don't even know any more.

He started having
these wild mood swings.

You know, violent, abusive.

You took him to the doctor,
psychiatrist?

Yes, we took him
to every doctor,

every specialist
that we could find.

Nobody could diagnose him.

Daniel doesn't even know when
he's having one of these things.

Monsignor Paul told us
that there are...

there are cases...

you know, cases where there's
no medical,

no psychological explanation.

Look, I never believed
in possession until this.

Is Daniel your biological son?

Of course he's ours.

Do you see a physical change
in Daniel?

Sometimes.

Can you describe it?

A change comes over his face,

like... like there is something
inside of him

that is trying to control him.

Have you ever seen anyone else
change like this?

No.

Now there is something...

Horrible
happening inside my son.

So we know what
we're dealing with here, right?

I don't know.

He said
he saw something in Daniel.

If Daniel were wesen,
then the dad would have to be.

- Or the mom.
- Or both.

At least one would
have to be, I think.

All right, what if one is,
the other's hiding it?

Oh, I think that'd be hard
to hide for long.

There is no parking
in taxi zones.

- Wie geht's?

Fine.

Been a long time
since I've been back.

And we're doing our best
that nobody finds out.

I wouldn't want
what happened to your brother

to happen to you.

How's everything been
since his death?

Nobody's very comfortable.

When is the reunion?

Not everyone's here yet.

What about Fornay?

He's coming.
So is Tavitian.

What about Lucanus?

They settled their differences.

Lucanus is dead.

Tavitian's taken control of
the Ceux de LA resistance nod

and united it
with his Resistencia maquis.

He's in control
of the entire South.

That changes some alliances.

Hopefully not ours.

Where are you keeping me?

Someplace
you're not going to like.

So if one parent is wesen
and the other one isn't,

what would the child be?

You mean a wesen
and a kehrseite?

Yeah.

So I guess it's time

for the whole birds
and the bienen-wesen talk.

Okay.

If both parents are wesen,
then the child will be too.

Or if one parent is wesen
and the other is kehrseite,

then there's a 50/50 chance
that the child will be wesen.

Unless the kehrseite
is a Kehrseite-Gentrager.

Oh.

Then you're definitely
getting a wesen.

Mmhmm.

Let's pretend I understood
what you just said.

What if both parents are wesen,
but different kinds?

You mean like
a Grundverschiedene situation

like us?

Well, we don't mean to pry.

Yeah, we do.

Well, then you're looking
at a Vorherrscher.

But...

As long as it's healthy,
we don't care.

Burkhardt.

We are on our way.

Seminary student's conscious.

Thank you for your help...
I think.

Hey, don't expect
to just get it all in one talk.

Ugh.

You'll get used to the smell.

I don't think so.

Last time I was
in a place like this,

my mother and I
were running for our lives.

From my family.

Only one way in and out, huh?

I don't like that.

No.

Straight into the sewer...

Which leads
to the Danube River.

This room was used through
many wars and revolutions.

Looks pretty narrow.

It was built in a time
when men were smaller.

Pretty sure you'll fit.
Pretty sure I don't want to.

- Not in that suit.
- How long do we stay here?

Until we are contacted
about the meeting.

It's something
my father taught me, you know?

And before your family
killed him.

The church takes great pains
to make sure

every conceivable medical
or psychological explanation

can be ruled out
before moving forward.

Many more cases of possession
are turned away

than are accepted
by the church.

Monsignor was certain on this.

He wanted so badly
to help Daniel.

What happened in that room?

Monsignor began the exorcism.

He commanded the beast
to come out.

Sanctificetur nomen tuum.

It all happened so fast.

Daniel attacked us,

but he cannot be blamed,
he's an innocent child

you did tie one of his arms.

Did you anticipate violence?

I'd started to hold him down

when the best fought
to control him.

We were concerned
that he might injure himself.

Did you see a physical change
in the boy?

What I saw was not
the face of Daniel.

It was the face of a demon.

So what are we dealing with?

Is the kid wesen, or is he...

and I hesitate to say this...

possessed by some demon?

I don't think he's wesen.

Even if one parent was,
they would know

and they wouldn't
put their child through this.

- So that leaves demon.
- I got noting else.

I wish you hadn't said that.

I saw it! I saw it!

Some kind of monster
in that boy!

Ma'am, I need you to relax
and just calm down.

Breathe.

Daniel.

What the hell is this?

I don't know.

Well, I know
what it looks like.

How do we handle it?

I think we just stay back.

That was really weird.

I think it reacts
to confrontation.

I wanna go home.

We need to put a guard
on this room.

Yeah.

- I need to see my patient.
- We need to talk.

That boy
is experiencing something

that I don't think anybody
is capable of explaining.

I don't believe any of that.
Get outta my way.

If you provoke that boy,

you will be a believer
real quick.

Anybody who enters that room
is at risk of physical violence.

We've already got a dead priest
and an injured seminary student.

Then what do you expect us
to do?

Nothing that could be
perceived as a threat...

no blood, no tests.

Just food and observation.

We have a unit on the way.

What am I supposed
to tell my staff?

Tell them you don't want them
to get hurt.

I'll give you 24 hours.

If he's that dangerous,
I want him out of this hospital.

Hello?

- Adalind Schade?
- Yes.

Your presence
is requested this evening

at the house.

May I ask what this is about?

We'll send a car.

You sure the parents
aren't wesen?

I'm not sure of anything.

I just haven't seen
any indication that they are.

And this is different
than anything I've ever seen.

You mean he didn't woge?

No, this is more like...
A battle within.

It's classic devil worship
as far as I'm concerned,

but we're hoping
you have another explanation.

What?

I kinda thought...

I mean, they're myths, right?

Are you thinking
what I'm thinking?

I think I am.
Grausens, right?

That's what it sounds like.

Is that a wesen?

Not really.

Every generation has heard
stories about Grausens.

They go way back.

They used to think
they were a wesen spirit

that would invade a child.

- But never a wesen child.
- Kehrseite kids only.

But the thinking has changed

since medicine and science
has advanced.

Now, some believe it's...

A mutation.

So which is it?

Nick, these are incredibly
rare occurrences.

I mean...
It doesn't really matter

because they've always
been dealt with the same way.

How?

They would disappear.

The wesen council is responsible
for dealing with them.

Sometime in the 1600s,

the council communicated
for the first time

with royals and grimms.

They forged an alliance.

For the safety of all of them.

Supposedly, Grausens,
if left to grow to maturity,

become some of the world's
most notorious psychopaths,

wreaking havoc on like
whole continents sometimes.

Historically,
wesen were to blame

for what Grausens have done.

That's why the council
steps in.

- Who is this council anyway?
- They enforce wesen law.

You guys have your own laws?

Oh, baby.

If this is indeed a Grausen,

we have no choice
but to inform the council.

Inform them means what?
Daniel disappears?

Basically.

Yeah. It's a death sentence
for the kid.

It's a death sentence for us
if we don't.

How do we even know
he is Grausen?

The law is clear.

Even if it's a possibility,

we have to inform the council.

That's why we shouldn't even
be having this conversation.

- Now you tell us?
- Well, look.

If we knew you were gonna
talk about Grausens,

we wouldn't said "don't...
Talk about Grausens."

We're not worried
about the council,

we're worried about the kid.

Now we get to worry about both.

Thanks.

Can't we just let Nick
run with this?

If they found out
that we didn't report it,

plus we made an agreement with
a Grimm behind their back...

Then I guess it's just a matter

of who goes
to whose funeral first.

Well, I'm not going
to your funeral.

I have to tell them.

Come in.

I got here as soon as I could.

Good. You'll be leaving
as soon as you can.

We've had the reports
of the possession of a child.

- Grausen.
- Mm.

- What do we know?
- Not much, I'm afraid.

A priest is dead.

And the child,
a nine-year-old boy,

is in hospital.

Do you accept responsibility
for what has to happen?

Yes.

This entry's from 1520.

There's more from 1683.

1741, 1804.

In each case, the Grimm thought
that they were going in

dealing with the wesen.

But it turned out
to be a Grausen.

That was their theory,
or belief, or myth.

Still, there's something
going on inside this kid.

I just can't figure it out.

Listen to this.
1920.

"After my encounter with what
I now conclude to be a Grausen,

"I'm left with one
undeniable certainty.

"Grausens are not the province
of grimms, not being wesen.

"I've therefore
informed the council

"as my ancestors
have done in the past.

"But I am left
with a nagging question.

"I don't believe
this is possession

"by any sort of devil or demon.

"I believe it is a disease,
of what manner I know not,

nor how it is transmitted."

Does this make sense,
based on what you've seen?

Well, at the hospital,

they said his white
blood cell count was high

and his immune system
was stressed.

Which suggests
infectious disease.

How long did the parents say
this has all been going on?

- About a year.
- So what happened a year ago?

I don't know.

If it is a disease,

it could've been transmitted
sometime before that,

depending
on the incubation period.

Well, what disease would cause
this kind of behavior?

There are all kinds
of pathogens,

viral and bacterial,

that could interact
with the central nervous system

or older portions of the brain
that control behavior.

And new pathogens
are discovered all the time.

This is a long history.

But apparently not very common.

Which could explain
why it's not well-understood.

I think you need to talk
to the parents

and figure out exactly
what happened a year ago.

I'm gonna talk to the parents
about pathogens...

And incubation periods?

I will go get my coat.

Verrat.

Did you call this a safe house?

I didn't.
Somebody else did.

Time to leave.
Wait.

Not that way.

Now I need to speak to someone
who can get me in to see my son.

Excuse me, there is a policeman

that is standing
in front of our son's room,

and he is not letting us in.
We're very sorry, sir.

We can't take any chances
on anybody else getting hurt.

They're not helping him here.

We don't know if they can.

This is Juliette Silverton.

She's been working with me
on the case.

I'm sorry, but we're gonna
have to ask you guys

just a few more questions.

More questions
is not gonna help out son!

We need to know exactly
what happened a year ago

when you first started noticing
a change in Daniel's behavior.

Nothing happened.
Nothing happened.

This... look,
this all came out of nowhere,

and it's just
kept getting worse.

What about before that,
say, a month or two?

Well, we were on vacation.

Where did you go?

Egypt.
Israel, Jordan.

With a tour group.

- How was Daniel on that trip?
- He was fine.

- But no...
- He was... he was fine.

No, he got the flu.
He was sick...

For about three days.

They gave him antibiotics
and then he was fine.

Did they happen to do anything
like a culture?

No, they just said
it was the flu,

and that he could've
gotten it anywhere.

He was swimming
in the Jordan river,

we were in the dead sea,
we were hiking.

I'm sorry, I just don't see

what this could possibly
have to do with anything.

We don't know.

We're just running down
all leads.

When can we see our son?

Let me check.

So it's possible
that he could've been infected

while they were on vacation.

Whenever any pathogen
is introduced,

the body has
an immunological response.

Must be something pretty exotic

to have been missed
by the doctors.

Any problems?

No, sir.
It's been quiet.

Nobody in or out?

Tell you the truth,
they've been kinda staying away.

- He looks so young.
- Yeah.

That's a weird place
to put your shoes.

What?

You put your shoes
in the drawer.

Oh.

You know, I don't really think
that Daniel's behavior

is caused by anything viral
or bacterial.

It would have to have a more
direct impact on behavior.

You know, a colleague of mine
did a case study

while I was in vet school
about a group of thoroughbreds

that were flown to Dubai
to race,

and there was a storm that
forced their transport plane

to layover in Jordan.

By the time the horses
returned to the U.S.,

they were exhibiting
extremely aggressive behavior.

Okay,
Jordan is where Daniel was.

Well, she argued
that the horses should be saved,

that their behavior was caused
by a protozoa,

similar to toxoplasmosis,

and that if she could just
kill the parasite within

the horses would return
to normal.

Did it work?

No, they destroyed the horses
before they could be treated.

Well, that seems to be
the standard treatment

for anything
they can't explain.

All right!

This is really
pushing it, Nick.

A little on the late side,
dude.

Whoa!

Who are you?

I'm looking
for Rosalee Calvert.

This is council business.

Nick?
What's going on?

It's not Nick.

- Rosalee Calvert?
- Yes?

I need to know
where the boy is.

I don't have much time,
Ms. Calvert.

He's at St. Joseph's
hospital.

The council appreciates
your loyalty.

Sorry to wake you.

What was I supposed to do?

Well, I can't just
let the guy go there and...

Monroe.

I have to tell Nick.
I'm sorry.

This is what I have to do.

People wouldn't necessarily
have understood the concept

of a parasite living
within the body

hundreds of years ago.

And if it manifested itself
physically

and was interpreted
as possession by the devil,

then, yeah,
you can kinda understand

everybody's rush to judgment.

So are you saying
that there's a way

to get the protozoa
out of Daniel?

No, I'm saying we have
to kill the protozoa in Daniel.

Well, how the hell
are we gonna do that?

Without knowing what
the protozoa needs to survive,

I don't know.

Monroe.
What are you still doing up?

Look, a guy from the council
was just here.

He wanted to know
where the boy was.

You told him?

I'm sorry, Nick, we had to.

But I wanna go with you, okay?
I can identify this guy.

Well, wouldn't that
just jeopardize you and Rosalee?

Possibly, yes.
But...

then don't.

There's supposed to be
an officer guarding this door.

Where is he?

He's not here.

We released Daniel Keary
a half an hour ago.

Why?

Because we don't know
what to treat him for.

His parents took him home.

You didn't think to notify us?

The police were notified.

The officer standing by
knew what we were doing.

This hospital needs beds
for patients we can treat.

Sorry, I got here
as soon as I could.

They released Daniel.

I know, I just got the message.

We have to get to his house.

We're looking
at thunderstorms...

I don't know
what we're going to do.

I don't feel safe.
I can't sleep.

It's our son, Nancy.
What can we do?

Well, what if he grabs you
again like he did last time?

I mean, what if he does to you

what he did to monsignor Paul?

I don't know!

Who is that?

It's those Detectives.

What do they want?
They're going to arrest him.

What do you want?

Sorry to bother you,
Mr. Keary.

Um, we think
that we might have figured out

what's wrong with Daniel.

What?

It's possible
that when you were on vacation

and Daniel became ill,
it wasn't the flu.

No, it was the flu.

Had a temperature,
he had flu symptoms.

The doctor examined him,
and you didn't.

But now you're here
saying that he has what?

We think it could be
a very rare protozoa,

like a parasite.

It could've been in the water
when he went swimming.

Where is Daniel?

In his bedroom, sleeping.

If what you're thinking is true,
could it be treated?

Hopefully.

First, we need to identify
the parasite.

That can be done
by testing for antibodies.

You mind if we look in on him?

Then we can talk about possibly
getting him reevaluated.

Tom.

Tomorrow,
we can make arrangements

to get him tested
with a specialist.

You've gotta understand

we've been through
so much already.

It's hard to get our hopes high
on one more new theory.

I understand.

What do we know
about this council guy?

Only that he's here.

And we can run a check
with the airlines.

Must've gotten in
sometime af...

Oh, my...

- The boy's gone.
- I'm going after them.

Stay in the house.

Please find him!

You want me to shoot him?

Actually, I do.
But not yet.

Can you handle him?
Go.

Daniel!

You don't have to be afraid.
We're trying to help you.

Daniel!

Daniel!

Nick!

I think I know where he's gone.

We built a fort together.

It is really cold.

If he's out here much longer
he could die.

This is it!
Daniel!

Daniel!

He's freezing.
Oh, wait, wait.

You gotta be careful
when you wake him up.

He's really cold.
I think he's hypothermic.

Oh, my God, look!

It's happening again.

We have to get him back to
the house and get him warmed up.

If this thing needs
a human body to live in,

isn't it dependent
on the temperature of the body?

Yeah.

Then what happens if the body's
too cold to support it?

It would die.

Wait,
what are you talking about?

Certain organisms
can only survive

within a narrow
temperature range.

The drop in
his body temperature

could kill
whatever's inside him.

Well, wait, how do we know

that's not gonna kill
Daniel too?

If his body temperature
were to drop too far too fast...

How do we know
that hasn't happened already?

Nick, we can't do this.

This could be
Daniel's only chance.

He's my son!

Then you make the decision.

Oh, my God,
something's happening.

What's wrong?

What is that?
It worked.

- What's happening?
- The parasite's dying.

We have to get him back now.
Come on.

Nick, get a sample.

Oh, God!
You found him!

We need to get him warmed up.

Put him on the couch,
get some blankets.

Get him out
of those wet clothes

and warm his body slowly.

Is he gonna be all right?

I think so.

Ms. Schade?
The prince will see you now.

The prince?

Life goes on, my dear.
So does the family business.

Hello, Ms. Schade.

I've been looking forward
to meeting you.

- Who knew I was coming?
- Too many.

But Breslau
set up the safe house.

Can't wait to meet him.

Well, first we've got to get
out of here.

My turn.

Those are the medical reports
run on Daniel Keary

after we took him in.

What does this prove?

Daniel was infected
by a parasite

that caused him to be what you
and the council call a Grausen.

It's not possession by demon,

it's not mutation,
and Daniel has been cured.

You're a Grimm.
You should know better.

I need to see the boy.

No, you don't.

And you need to take
my word for it,

because of what my ancestors
and the council agreed to

at the charter of Wittenberg
in 1682.

Take the report with you
when you go.

I want the council to read it.

You're letting me go.

I like to think
we live in an enlightened age...

Where fear
does not drive belief.

That's the truth
behind the fear.

Fear is not an easy thing
to change.

Try.

Do we believe this report?

Well, he didn't have
to let me go.

So some of the things
we've heard

about this, uh, Grimm are true.

I don't think he's like
anything we've ever dealt with.

Hmm.

Monitor the boy.

And the Grimm.

"When Daniel Keary's body

"became so cold that he slipped
into hypothermia,

"the Grausen could
no longer survive.

"Subsequent tests...

"On the boy...

Proved that..."

I forgot. What?

Proved that the unicellular
eukaryotic organism

identified as Daemoni Adspicio

was responsible
for the behavioral changes

in the boy.

Not always easy knowing
what to believe in.

How do you spell
"eukaryotic"?

E-u-k...

- a-r-y...
- a-r-y.

- o-t-i-c.
- o-t-i-c.