Original subtitles

Looking at Bariloche,

it's very easy to think that this is just a beautiful place

full of beautiful people,

but this city holds a seriously dark secret.

Hundreds of Nazis came here at the end of World War II.

Senior SS generals, Auschwitz's angel of death,

and more than likely,

the leader of the Third Reich, Adolf Hitler himself.

He could've found refuge here and stayed in this place,

the Inalco House.

You better not go there, you know?

- Okay. - I don't know.

Well, I think we will go there.

The evidence keeps stacking up that this would've been a route

Hitler would've taken had he fled.

male narrator: 21-year CIA veteran, Bob Baer,

and war crimes investigator John Cencich

have used the recently declassified FBI files

to determine that Hitler

could have escaped Germany bound for Spain,

boarded a U-boat in the Spanish port town of Vigo,

then arrived off the coast of Argentina

three months later.

Hitler could have left Vigo, Spain,

and what we have in Argentina

is a team that's looking for the possibility

there's a scuttled U-boat here.

They've been looking for days.

We found what we thought could have been a piece of the U-boat,

but the weather's coming in.

So we need to keep digging.

My problem is, the distance from Vigo, up here,

down to Argentina in a U-boat.

Look at these things.

It's not some place

you would like to spend a couple weeks underwater.

These are like big coffins.

So, he needs an intermediate stop,

and that would be the Canary Islands off North Africa,

which is in a way,

a no-man's land.

narrator: On the remote Spanish Canary Islands,

the team uncovered evidence that certain locals

were secretly supporting the Nazis during the war.

Is he telling me there was an Enigma machine?

narrator: A nearby network of tunnels less than a mile

from the sea were rumored to be arming

and re-supplying German U-boats during the war.

He's telling me that there was island storage for torpedoes.

Some tunnels.

Could a U-boat have been resupplied in the Canary Islands

and could Adolf Hitler have used that location

to make his way to South America?

Let's get Lenny and Gerrard into these tunnels,

see what they can find.

This whole myth of Spanish neutrality

is just blown away for me.

narrator: Former US Marshals Commander Lenny DePaul

and acclaimed investigative journalist Gerrard Williams

make their way to the network of tunnels

rumored to be a Nazi U-boat base

that could have aided Hitler in his journey to Argentina.

All the Intel that we gathered here said that the tunnels

were specifically built for the navy.

The navy kept their ammunition here,

that kept their torpedoes.

There's seven kilometers of tunnels, that's enormous,

and who supported it?

Was it the Germans or was it General Franco?

We need to find out either way.

narrator: Local journalist Javier Duran,

the man responsible for exposing the presence

of these hidden tunnels,

has gotten the team access to the complex.

Okay.

This is on a completely different scale.

Look at the size of this blast stone.

Yeah, I see.

What's that, eight inches of steel?

Wow. Nobody's getting past that thing. That is solid.

This is, I mean, seriously military engineering

from the '40s.

It is a ventilation system.

These rooms were isolated rooms

to manipulate explosives.

Here, see the lip?

So you're making a proper airtight seal

when you close this.

Was Franco and Hitler's conversation about this place

so they could protect the island?

The Canary Islands?

Of course Hitler was really worried that Allied forces

could invade the Canary Islands,

so, the next strategic point close to Africa

and the rest of Europe is here.

narrator: Although Spanish dictator Francisco Franco

kept his country neutral during World War II,

he supported the Nazi regime,

which helped him rise to power during the Spanish Civil War.

In 1940 Franco me with Hitler in Hendaye, France

to discuss the Nazi leader's secret use

of the Canary Islands.

It is believed that Franco offered this as a concession

for never officially joining the Axis powers.

'36, '39,

the civil war in Spain,

your economy is a complete mess in '39.

Something like this costs millions of dollars to build.

Who paid for this?

Officially all this was built with Spanish money.

Look at this Gerrard. Ah-ha!

Ah-ha!

That's to carry the torpedoes.

That's to hoist.

There's a hoist runs the entire length of the tunnel.

Look at that. All the way down.

That can carry a lot of ammunition.

In the early '40s Spain has a really small navy.

We've been in a room that could hold hundreds of torpedoes.

Well, the only submarines that are in these waters

that need torpedoes are Nazi submarines.

It just goes on forever.

It's amazing.

This is just too big for Spain in those days.

It's got to be meant for somebody else,

or it's got to be meant for Spain and a friend

and we know who that friend is.

That friend is Adolf Hitler and the Nazi party.

Spain didn't have U-boats.

They didn't have the kind

of resources available to build something like this.

Clearly the Germans came in and built this for them.

I don't care whose name the title was in,

it was a German base.

These tunnels, they're far too expensive

for the Spanish government,

but we don't have to even look at the money.

All we have to do is look at common sense.

Why would the Spanish government

develop an infrastructure

for submarines when they don't have any submarines?

I think what we've established here to my satisfaction

is that a U-boat could've been taken care of,

and the question is, what would've happened to Hitler?

I mean, we're not talking

about he landed there for a couple of hours,

we're talking possibly weeks.

They didn't move him into one of these tunnels

to recuperate in a tunnel,

I can tell you that.

Hitler was not the Unabomber that lives out

in a shack in the forest that runs off electricity.

You're taking somebody who is leading the Third Reich

and you have to protect him.

What we need to do is spread out from the mere tunnels

and look for known associates.

Any sort of other infrastructure

which could take care of a human being

to recuperate from a U-boat.

narrator: John digs through the declassified files

for any mention of key Nazi supporters

on the remote Canary Islands.

We have a document here from the OSS,

what the OSS are calling "obnoxious" Germans.

This OSS document relates specifically to Gustav Winter.

It's not a term we use today, obnoxious,

but what they're talking about is somebody

on a terrorist watch list.

He was a German engineer.

In 1930 he moved to the Canary Islands

where he built a villa,

and certain aspects of his villa

became a militarized zone under Franco.

Well, I mean, look,

somebody going down to the Canary Islands,

buying or leasing a peninsula,

building a villa in World War II,

I mean we're talking about essentially a base.

It's a satellite Nazi base.

Yeah, there's no other way to put it.

Is it a place where Hitler could've received the rest

and recuperation that he really needed?

Let's get Lenny and Gerrard in there.

Let's see what they can find.

Gerrard, look at the front of the house.

Looks like some kind of an observation tower.

narrator: After an hour drive through volcanic mountains,

the team surveys the 44 acres of land

surrounding Villa Winter.

You've got one road in, one road out.

Look how this is built; it's a fortress.

They have vantage points on top of these mountains.

I've hunted the worst of the worst;

I've found them hiding in cabinets, behind trees,

in tunnels. I would throw all that in the garbage

to have a place like this if I was a fugitive.

It's desolate, there's nothing here.

Perfect spot for a safe house.

A compound like that, there was somebody in that house

that I needed to pull out of there,

it'd be almost impossible for me to get to without anybody

knowing I was coming.

For a fugitive, it's a fortress.

Perfect place to hide.

Here's our first glimpse of the sea.

narrator: Tim Kennedy, US Army Special Forces,

and a team of world-renowned marine archeologists

are following eyewitness testimony,

Argentine naval documents,

and an FBI report

that potentially places a sunken U-boat

that shuttled Adolf Hitler to South America in this area.

Holy crap.

narrator: After spending ten days searching these waters,

the team comes head to head with Mother Nature.

Crazy.

Golly.

Jeez!

This is crazy water here.

Swells, wind, whitecaps.

It's a sailor's worst nightmare.

What would happen if we tried to put a boat out there?

The wind comes in this direction,

we try to go in like this, you would just--

Hit the breaker, come up--

Yes, it just--

Honestly I don't think you'd even get past the surf.

You'd get one wave over the side, equipment's gone,

more importantly it's a safety issue for everybody on board.

There's no way you're going out today.

It's just insane to go out like this.

Where we are this time of year, it's getting colder,

winds getting harder, storms are going to be coming in.

it's just getting rougher.

We're grounded.

All right, let's go.

You can't do this stuff during the winter,

and winter is here.

How much further we gotta go?

Not very much.

narrator: Lenny DePaul, Gerrard Williams,

and their local translator make their way towards a property

once owned by Gustav Winter, a prominent name

on the US government's German watch list.

Villa Winter is built on 44 and a half acres of Nazi land.

narrator: They are in search of any evidence

that could point to Hitler using this villa

as a rest stop and safe house

to break up the grueling 7,000 mile U-boat journey from Europe

to South America.

Boy, look at this.

It's like something out of a James Bond novel, you know?

This is where the baddies live.

Welcome to Villa Winter.

narrator: The team has been granted access

by the property's current owner,

a real estate development company

who will soon level the villa to make way for a resort.

Gerrard, look.

See the glass?

It's not nice stuff.

I have no blueprints, I have nothing.

So, I have no idea exactly what we'll find here.

Okay, so then it's possible

that they could've been using this

to signal to U-boats offshore,

give them a point of reference,

and it's not a difficult idea

to think that you could be taken by small boat to those U-boats.

And to here.

What goes on down here?

What was this space used for exactly?

It's like a little dormitory.

Jaime, what's this?

What was down here?

I don't know.

It's very strange.

This kind of reminds me of a medical facility or something.

You know, with the tile and the way it's set up in here.

Yeah, put an operating table in the middle.

I mean, there were places where people could recuperate,

and recover, and sleep, and stay.

This is an amazing safe house,

if you were a high value target you are hiding somewhere,

it's amazingly secure.

So, if you're a U-boat captain,

it's a great place to aim for,

and when people are arriving here exhausted,

or in need of some sort of medical help,

they could rest here while a doctor treats them.

This could be used to get high-ranking

Nazi officials out of Germany and to safety.

Villa Winter, it's perfect if you take somebody

like Adolf Hitler who needs medical treatment,

bring him here for however long.

On top of this you have a known Nazi living there.

I think this is a huge clue.

If we look back at the FBI document

that relates to Hitler's submarine landing in Argentina,

it says the sub came ashore and Hitler, two women,

a doctor, disembarked.

You have Hitler with serious medical conditions.

A medical facility at the Villa Winter,

then Hitler arrived by submarine accompanied by a doctor.

It's all aligned.

Between the tunnels for the U-boat and this house,

this could be the perfect place

for Hitler to recuperate on his way to Argentina.

narrator: Satisfied that it was possible that Hitler

used the Canary Islands as a transit point

to South America,

Bob shifts focus to the other leg

of the investigation: the hunt for a scuttled German U-boat.

Now we've got this team down in Argentina,

which is running a roadblock, and that's the weather.

Winter is coming on.

But, I think what we really need to do

is push on the investigation,

at least for this winter. - I agree.

I'm convinced there's a U-boat out there.

I want to come back when the weather is better

and find that damn thing.

In the meantime,

the evidence for Hitler landing in Argentina was very strong.

narrator: Earlier in the investigation,

the team on the ground in South America

followed an FBI file placing Hitler unloading from a U-boat

near the Argentine port town of San Antonio Oeste.

They uncovered eyewitness testimony--

She claims that from her kitchen window,

she saw a submarine.

narrator: A local Argentine naval file

of a mysterious German U-boat--

What happened to the sub?

They don't know.

narrator: And a Nazi kingpin,

Geraldo Lahusen, operating in the area.

I'm firmly confident that Hitler very well

could've landed in San Antonio Oeste.

The question is, where did he go next?

He's not going to sit here where he got off the U-boat,

especially if it was scuttled.

There's too much risk.

If you go to some of these other documents,

one an FBI document

indicating that once this U-boat arrives in Argentina,

there's a trip inland

towards the foothills of the southern Andes.

"The party arrived at the ranch where Hitler

and his party are now hiding."

Another document I have here

is stating that Hitler is living

in an immense German estate

in Patagonia.

So, according to multiple sources,

Hitler was moving inland.

Well, it's Patagonia, they're going for the mountains,

they're going for a remote area,

so what we are looking for is German communities.

And, if you keep going across South America

you'll come to San Carlos de Bariloche.

Bariloche is the Berlin of Argentina.

narrator: Bariloche has long been known as an epicenter

for fleeing Nazi war criminals.

Nazi intelligence officer Reinhard Kopps,

wanted for crimes against humanity,

died at 86 in Bariloche,

and Erich Priebke, captain of the SS police force

and the leader of the massacre of 325 Italians,

lived openly as a school teacher

until his capture made international news in 1995.

This isn't the kind of place that you have to hide out.

The German community there goes way back,

it's rooted there,

it's the kind of colony

that Hitler could feel comfortable, protected.

We are only going to get one shot at it.

Some of the people in this area,

even today, are not friendly to outsiders.

If that report's right,

that we're looking for an immense, German-owned estate,

Bariloche is a good place to start.

Absolutely.

We need to get people out there right now.

Let's see what we can find.

After World War II, up towards '48, I mean,

this place became Nazi central.

narrator: Following declassified reports

of Hitler living in Patagonia

on an immense German-owned estate,

Tim Kennedy and Gerrard Williams

begin their investigation of Bariloche, a remote village

tucked between the border of Argentina and Chile

that has long been a stronghold for Nazis on the run.

This place is isolated, it's remote,

there's no access.

It was protected from the rest of the world.

You don't even realize all the hidden secrets are here.

narrator: They are joined by JP Cervantes, a Green Beret

who has spent his career protecting high-value targets.

Bob has added him to the team

to help navigate this tight-knit German community.

This is not my first time in Bariloche,

I was here before training with the Argentine military.

According to them, back in the '40s,

their primary mission

was to guard SS officers that were here.

Not only support hiding,

but actually protect them.

If you're not from here

they will not tell you anything about it.

You just don't come into Bariloche

and start asking questions about Nazis.

Hundreds of Nazis came here at the end of World War II.

So this really is a place of security, this is a refuge.

It may all be chocolate shops and Bavarian buildings,

but most of these will hide a secret,

and that secret after 70 years needs to told.

narrator: The team devises a plan

to investigate Bariloche.

Let's say at 1600 meet back here.

All right guys, take care.

narrator: Gerrard will dig into potential locations

of the immense German-owned estate

cited in the declassified files.

Tim and JP

investigate Bariloche's points of entry and exit

to gather information on how a target as high value as Hitler

could have been inserted into this community.

With special forces

I help people get from one point to another.

The first thing

I gotta look is I gotta look at all the points of entry.

How am I gonna get transportation in here?

So if I want to move somebody here, of course

I'm gonna use the rail line.

You know how a lot of train stations are like,

in the middle of the town?

- Yeah. - This one is in the outskirts.

It's isolated, it's private,

if I was going to be wanting to move somebody in and out,

this is how you'd want the train to be located.

So According to this the first train that came to Bariloche

was in 1934.

Those have been operational for 11 years

before Hitler's escape.

narrator: To determine how Hitler could have successfully

moved to Bariloche from his last suspected location,

unloading from a U-boat in San Antonio Oeste 400 miles away,

Tim and JP question the train stationmaster.

Does this track go all the way to San Antonio Oeste?

That line has run since 1934.

Were there any private trains,

like people that shipped their cargo

using their own trains,

or any private boxes?

As soon as I hear the word Lahusen,

I have in my head, Lahusen from San Antonio Oeste.

narrator: Earlier in the investigation, FBI files

led the team to Geraldo Lahusen,

a wealthy German operating a wool empire in Argentina.

Lahusen is the central figure in San Antonio Oeste.

This is a guy who could do anything he wanted.

Hitler would have to have somebody like a Lahusen.

Lahusen had been moving wool and people

from San Antonio Oeste to Bariloche.

All of these dots were absolutely,

unequivocally supporting each other.

narrator: Gerrard prepares to meet with a local expert

on the architecture of Bariloche.

He has information on a location

that may match the declassified files' description

of an immense German estate in the area,

a mysterious property known as the Inalco House.

Buenas tardes, what can you tell me about the house?

narrator: For decades, local rumors have swirled that Hitler

himself once took refuge in this remote mansion.

The Inalco House sits miles from civilization,

and would have only been accessible by the lake

it is situated on.

450 acres of dense forest on three sides,

and two islands just offshore

make it completely hidden from public view.

Is it possible to get onto the land?

See the house?

- Okay. - I don't know.

Well, I think we will go there.

I've been doing this story for over ten years now.

A story like this, people covering all over the place,

and it's actually quite hard work trying to find out

what those secrets are, and why there are secrets.

We're gonna have a look anyway.

So this is the Inalco House.

narrator: Tim Kennedy, Gerrard Williams and JP Cervantes,

a Green Beret and expert on military operations

in Bariloche,

go over the intel from the nearby Inalco House,

which could be the immense German estate

the declassified files

place Hitler in months after he was believed dead.

The lot is bought in 1940 by Jorge Antonio,

who's the head of Mercedes Benz in Argentina.

Funny enough, also one of the top Nazis here.

The property itself is finished in '45

and then it sort of goes quiet for a decade.

So 1945.

A super-rich German,

part of the Nazi party, owns this property.

Yup. We're not talking about a small property,

we're talking a mansion forty miles away from anywhere,

with a large farm behind it,

which makes them pretty much self-sufficient.

You know, Afghanistan with Bin Laden,

one of the very unique things about his mansion

was that it was entirely self-sufficient

in regards to him not needing ever to leave it.

This seems to replicate that.

If I'm going to hide a high value target,

this is perfect.

So how do we get in here?

That's the big question.

This is not going to be easy

in terms of any legal access to it at all.

Green Berets, like, we go into places behind enemy lines,

all the time.

It's all about having to plan and executing that plan

without being detected.

All right, we can't get any access from the road.

I think one of the clearest ways to get there

is to go by the beach. - Okay.

We do have to be aware that if there is a caretaker there

we are in Argentina,

I know you guys are used to guns around

but he may well be carrying a weapon of some sort.

- Okay. - So--

So all I'm saying is

We don't want to get the boat way too close to the house.

How about we keep the boat away from the beach,

but close enough for you to make a swim there?

All right, so,

we have island one, which is a big island.

There is island two.

My recommendation is, you on an island boat,

just fishermen cruising around.

Right? Fishing good spots on the backside of this island.

Now line of sight from the house, line of sight

is difficult to see anything going through there.

I slip into the water,

and do a surface swim and try to get some photos.

Slip out of the water,

take a camera and get out of town.

I'm trying to understand

how feasible it is for this house

to hide Hitler.

JP and I, we go and assess locations to see

if it's suitable for a high value target all the time.

I'm thinking about security measures,

about a defense plan.

Any safe rooms, places to hide in.

There's a lot of factors that we have to investigate.

We have to get on here, we can't be compromised.

narrator: With the help of a hired fishing boat,

JP and Tim make their way to a property the FBI files

suggest may have been a hideout for Adolf Hitler.

So the house should get tucked away a little bit.

I saw something.

Can you turn around?

Right there.

- Over there? - Yeah, over here.

Slow down a little bit.

Looks like a little guard shack.

You put a machine gun right there,

you can cover this entire body of water and nothing

can get through, right?

The distance, the high ground, that's perfect angle.

You can have grazing fire

and you can cover more terrain from there.

If we have someone like Hitler hiding in this house,

you start looking at how you're going to control the access

and monitor any traffic that is on the lake.

And you want a guard who'd give him early warning.

That guard post is a perfect place to do it.

Let's go little bit to the left here, to the island.

narrator: The team heads between the islands

to shield them as they prepare to infiltrate the property.

We've got to see if anybody is in there first,

and then we'll see how far can we push the pocket.

I'm watching, I got your back all the way from the boat.

Yeah.

Army Special Forces, our patch,

boasts our capability on land, sea and air.

Alright, we're 15 meters away, Tim.

Any way to get to our objective area,

we can get there.

Go.

People have this weird perception

of what being stealth is all about.

What it's really about is being the slowest thing out there.

JP covers check.

- Read you loud and clear. - All set.

I'm going to move up to this first building,

see if I can uh,

get a vantage point where I can see the house without uh,

trying to give myself away.

Roger.

Be careful.

We have to be very careful on how we approach this.

You know, we're not in combat.

Rules of engagement are completely different.

If we get shot at here, we can't shoot back.

We got eyes on the house.

Roger that.

It doesn't look like there's any activity here at the house.

There's no smoke, there's no lights on,

all the doors look buttoned up.

Yeah, I don't see anything from my side either.

I mean, It looks like nobody's been here.

Roger.

narrator: With no signs of the caretaker of the property,

a single cameraman joins Tim on the shore of the Inalco House.

The house, it's gigantic.

There is three chimneys here,

two doors,

about 15 to 17 windows.

To build something like this, in the '40s,

you have to boat in every single piece.

It's crazy.

These people were powerful, rich, and they wanted privacy.

I'm on the lake side of the house right now.

I've got eyes on you.

I'm going to try to do a little bit more recon.

Roger. I'll be standing by.

You obviously got a dock here, for boats

but can't even figure out what this is.

This thing is crazy sturdy.

Yeah, these beams right here,

they're like raised up and between them

we have a whole bunch of super thick, I mean there's

like, four-inch thick boards.

JP, it's Tim.

I'm on like what seems like a ramp for sea planes,

coming right up to the front of this property.

This location is completely secluded

but if you're isolated like this,

you're going to come in by boat. It's vulnerable.

Everything can see you,

but sea plane access is different.

It's perfect for a high value target.

You could hook a winch up right there,

and pull the sea plane in.

And the construction of this ramp, it's so solid.

Stop, stop, stop.

I've got movement. I've got somebody coming.

I've got movement.

I've got somebody coming out of the house.

He's walking towards you.

Ah, [bleep].

narrator: While investigating the Inalco House,

which declassified files suggest

could have been a hiding place for Adolf Hitler, Tim Kennedy

discovers the property is not as vacant as it seems.

Hey Tim, it seems like he went back inside the house.

I don't see movement so we should be good to go.

Uh, just hop in the water and we'll come and get you.

narrator: Knowing the caretaker may come back any minute,

Tim and the cameraman withdraw from the beach.

The reconnaissance of the Inalco House

was partially successful.

We have a ton of photos,

but there is still significant questions

about this house that need to be answered.

Go.

Anybody that mans that guard tower with a machine gun

can protect the entire point of entry or exit.

narrator: John Cencich

and Bob Baer analyze the intel collected by Tim Kennedy

on his reconnaissance mission of the Inalco House.

This is self-contained,

out in the middle of nowhere and having sea planes come in,

tells me that they had visitors that they didn't want seen.

There's no other explanation.

People who have guard towers are heads of state,

or wanted criminals.

You simply do not need guard towers

unless something else is going on in the property.

narrator: Bob and John have tracked

down architectural drawings of the Inalco property.

This is the house, facing going in that direction

is the same as the front here.

Yeah, it's facing the lake.

Further back here, probably a flower garden,

and then there's another structure back here.

Which looks like a house to me.

Normally in places like this if you have a guest house,

you put it off to the side or if it's servants' quarters

you put it far away from the house.

Why would you, on an absolutely gorgeous lake like this,

take a structure and put it behind another one?

If it's directly behind the principle residence,

it can't be seen from the lake and if it can't be seen

from the lake it can't be seen from anywhere.

Yeah, I mean, it's just a principle of a safe house

you do not want to see activity.

I think this house is flashing red

and now on top of it we have a hidden house.

What in God's name is going on here?

We have to get in there

and figure out what this house is about.

Tim's already had a potential confrontation with a caretaker.

That's our biggest concern.

We cannot send a whole crew in there.

We're just, we're going to be caught.

I think we need to send in only one person

to minimize the risk.

And that's Cervantes.

He's been down there, he speaks Spanish.

Let's do this incrementally.

First thing we should do is send in an initial reconnaissance.

See if the caretaker

or if there is any other security personnel in the area.

Then fly a drone over the place.

We have to absolutely see

what is in that rear house, what it was for.

Let's see what they can find.

narrator: JP Cervantes returns to the Inalco House

to stake out the property and plan his approach.

As I was observing today, I was there for hours.

narrator: JP uses the state- of-the-art surveillance drone

equipped with a high-resolution camera

to investigate the unknown structure

that the team identified on the Inalco blueprints.

This drone is an amazing system.

We can see everything we want.

I'm more interested in what's in the back,

where that other building is supposed to be.

That is very interesting.

I am looking at the ground,

there is supposed to be a house or a structure here.

Nothing out there.

That's a surprise.

Something strange here.

narrator: To investigate the ground

where this unknown structure

was believed to have been located,

JP uses the cover of the forest

to circle around to the back of the property.

Hey, what do you make of this, man?

Check it out.

This really caught my attention.

I mean that looks to me to be a vent.

narrator: Tim Kennedy

and Green Beret JP Cervantes review the images

from their successful reconnaissance mission

of the Inalco House,

the location that declassified files

could place Hitler living months after he believed dead.

Where did you come across this vent?

- Hold on, let me pull it up. - That's the back.

There's supposed to be a house right here.

Yeah, I didn't see anything.

This--that's like sunk,

is that maybe a collapsed subterranean area?

I mean, any time you have a principle,

you're always going to have that safe room, right?

It's going to be defensive. - Right.

Putting a guy in a bunker underneath the house like this,

he would be perfectly safe and secure.

Yeah.

If there is ventilation shafts,

there has to be some hidden bunker there.

We have to go back and do our due diligence to research

and investigate this location.

We have something we need to go put ground proof on,

have to put our eyes on it,

need to figure out what is is.

narrator: Under the cover of darkness Tim and JP return

to the Inalco House

to investigate the air vent they suspect

could lead to a potential subterranean bunker.

Man I think it's just a little bit here.

narrator: They use a low- spectrum red light

to decrease their chances of detection.

It registers at a tenth of the intensity of white light

to the human eye at night.

- Let me take point. - Okay.

Somewhere over here, keep your eyes open to the left.

Here we go, right here.

See it? Right there.

Let me go ahead and get the snake out.

narrator: This microfiber optic camera

is less than an inch in diameter

and equipped with a 100 foot cable

allowing them to look through the grates of the air vent

to uncover what may lie in the darkness deep below.

It's like a small camera at the end of a lens

that has uh, its own light source.

You can bend it to get it up into crevices, nooks, crannies,

under doors, in this case down what we think

is a ventilation pipe.

We are connected.

I'm in.

There we go, now.

You getting that? - Yeah. I see it.

- You see that? - Yeah.

It looks like there's a piece of metal, support to run across.

You know, maybe a rebar.

This is solid rebar.

Why the hell do you have three quarter inch-thick rebar

out in the middle of nowhere?

This absolutely is some significant structure.

Maybe even a subterranean hidden bunker.

It looks like it's been either collapsed or destroyed.

Whoever lived there, they're trying to cover their tracks.

narrator: Next time on "Hunting Hitler"...

She had some serious money.

A lot of money.

And most importantly--

She was a Nazi.

Can she remember how long Hitler stayed in La Falda?

Between nine and ten days after the second world war.

It's confirmation that Hitler didn't die in the bunker

in 1945.

Are you aware of anything planned into the hotel

to protect important people?

If we find evidence that there were tunnels here,

Hitler really could have operated out of this hotel.

1947 comes along and all of a sudden,

Hitler is back on the radar. - I have nothing.

I have something right here.

Turning a page and seeing the exact words

that are in the FBI file, takes your breath away for a second.

Yeah, its definitely it. He was here.