All language subtitles for Lost Gold of World War S01 E06_track3_[eng]

Tonight, on The Lost Gold Of
World War II"...

‐ Rain's definitely
not ideal for this.

Racing against the clock, here.

‐ That could be the back door
that we've been looking for.

‐ This is where I would drill.

‐ Fire this baby up!

‐ That's a box marker.

That's carved in there, man.
It ain't no natural thing.

‐ Ho, ho, ho‐‐

‐ What the hell did
this thing hit?

‐ So the Nazis were teaching the
Japanese how to make concrete?

The only way bubbles
could be coming out of there

is if there's a tunnel
down there with air in it.

‐ That's no coincidence.

There's something
going on at that level.

‐ For 70 years,

legends have been told
of a buried treasure,

shrouded in danger.

It's one of the great mysteries
of World War II.

‐ Something very
secretive and strange

has gotta be buried
in that mountain.

‐ In a covert operation,

infamous Japanese general
Yamashita

allegedly buried
thousands of crates

throughout the Philippines
near the end of the war.

‐ They were just taking
anything of value‐‐

gold, silver, weapons,
even military secrets.

Yamashita's treasure
could be anything.

‐ Now, with the help
of a key eyewitness...

...a team of Americans
is on the hunt

for this lost chapter
in World War II history.

‐ Here's something,
right here in this area.

‐ The question
we have right now is

what is the best way
to get inside this mountain?

‐ The marker was right here.

‐ Oh, yeah.

Right here.

‐ Peter Struzzieri
and his team

are attempting to find
a back‐door entrance

into a network of tunnels

they hope leads
to Yamashita's treasure.

They got here by following
a trail of symbols‐‐

This stone pyramid pointed
the way to a massive boulder,

apparently carved
into the shape of a turtle.

‐ This is the best
thing we've found so far.

‐ The turtle pointed
the way to another symbol‐‐

a circle with a distinct
set of lines inside.

Symbols expert Martin Flagg

theorized it could
be a Golden Lily marker

for a back door.

‐ So the Imperial family
would have needed

a different way to get
into the treasure tunnel.

‐ Exactly.

They needed
a back door to get in,

where not a lot of people
could see them.

We need to look
this area over real good.

We're gonna look
for some rocks piled,

and if we can find that,
that may be the way in.

‐ Now, the team searches
the area near the marker,

looking for
a formation of rock

that resembles
the marker itself.

‐ Look at these rocks
way up here.

That's a pretty sizable
rock right there.

You guys wanna move back,
I'll clear it off a bit.

‐ Lifted up off the ground
a little bit over there.

‐ This‐‐to my eye,
this looks stacked.

Know what I mean?

‐ Feel it right here,

how rough the edge
is coming beneath here.

That's all natural.

Martin, you see this crack
in the rock here?

You see how rough the edges
are on this rock here?

So this is typical where
the rocks have separated.

‐ Oh, yeah.
‐ Okay?

And they're‐‐they're rough,
they're sharp.

This will not be it.

We're searching this area
for any carved stones

or any unnatural rock formations

that may have been
placed deliberately

to hide our back door.

So let's look for something
that's out of the ordinary‐‐

a group of rocks where
the edges have been worked

and are rounded.

Let's move on.

‐ Looking for very large rocks?

‐ Very large, very large.

‐ Hey, John,
I think I found something!

‐ What is it?
‐ What do you got?

‐ Check this out.
‐ What the hell?

‐ So what do we do with this‐‐
‐ Holy [ bleep ], look at that.

‐ You know, looking at it,

it definitely has
just a weird look to it

Like if it was just, you know,
three rocks that broke apart,

they would have
straight, crackly, edges.

‐ These look like they've been
smoothed down and worked,

and this rock has
been fitted in there.

You know, these three rocks,
and the three triangles,

really kinda looks
like the marker.

‐ Uh‐huh.

‐ And what do you see?
You've got the three rocks‐‐

yep, here, here, and there‐‐

just like in the symbol
we had over there.

That could be the back door
that we been looking for

‐ If we move this rock here,

there'd be
an entrance here, maybe?

‐ There could very well
be an entrance here.

I believe
this back‐door symbol

has led us to
this formation of rocks.

Now we have to
come up with a plan

to figure out
how to get inside it.

‐ We need to figure
this out, guys.

Let's go back to base camp.

‐ Let's say
that this is our back door.

Keep looking at our main map

and where the location
of the back door is,

you know, so it's, you know,
roughly right here.

And our turtle, you know,
which would've been, you know,

a classic front door entrance,
sits over there.

We draw a line between the two,
you know,

it could connect a tunnel

from the front door
to the back door.

‐ And look what
this line goes through‐‐

it goes through our pyramid

and the hole at breach six.

I wanna rip
these rocks out and see

if there is a tunnel
behind that formation.

‐ Look at this rock.
It's like 50 tons.

Our excavator's
only 25 tons.

I mean, how are
we gonna move this?

We can't get down
to the front side of it,

there's no way
to get over the cliff.

This is tucked into
the face wall there,

so‐‐and there's big
piles of rocks up here.

Just getting the excavator up

over the top to even work it,

it's gonna be
a really hard task.

‐ Well, y'all got more of
a problem there than you think,

because it looks like
if you move this rock,

this could collapse.

It could close your tunnel.
Not only that,

you go to move these rocks
in the wrong order,

you could set off any kind
of traps they have inside,

which could be any‐‐
any kind of explosive

they wanted to set up

and close the tunnel
up permanently.

And the Golden Lily would've
had a map or something

telling where and what kind
of traps they have inside,

which we don't have.
‐ If what you're saying is true,

I don't want to move
any of these rocks right now.

We better figure out
a better way.

You have any ideas?
‐ I do.

I think we should
do some testing there.

I think GPR would work here.

‐ GPR is a precision
scanning method

that shoots high‐frequency
radio pulses

into the ground
to detect subsurface features

like tunnels and caves.

A common tool for engineering
and construction projects,

it is also used by the military

to locate unexploded ordnance,

or by law enforcement
to find unmarked graves.

‐ So if there is
a tunnel there,

the GPR can look
down in the ground

and can see any
void spaces, tunnels.

Any anomalies that don't belong,

the GPR will pick up.
‐ Okay.

I like this plan.

We could‐‐if there is
a tunnel there,

we can set up the drill,
drill down‐‐

Drop a camera down,
and see what's there,

and verify that
the tunnel does exist.

‐ I agree. I know a guy
who can help us out.

‐ All right,
let's make this happen.

‐ John reaches out
to his colleague,

ground‐penetrating
radar expert

Dr. Daniel Bigman.

‐ Hey.
‐ Good to see you.

‐ Dan Bigman is one of
the world's leading authorities

on GPR technology,

and has extensive experience

scanning archaeological sites,

ranging from Roman ruins

to Native American
burial grounds.

‐ We're glad
to have you here.

‐ Yeah, thanks,
glad to be here.

‐ To begin scanning for evidence
of a possible tunnel,

the team leads Dan to the area

above the suspected
back door rocks.

‐ So Dan, if there is a void
or a tunnel down there,

what are we gonna
see on the screen?

‐ We'll see like
a bright spot, almost‐‐

a hit of some sort.

So a tunnel filled with air
should be a big contrast,

and our hope is that we see
it really nice and bright.

‐ Awesome.
‐ Sounds good.

‐ I'm looking forward
to seeing something.

‐ All right, you want us to
clear some rocks out of the way?

‐ Let's go ahead and clear
the rocks out of the way

so we can get started
collecting.

It's an interesting site.

It's definitely intriguing

I'm really curious to see if
there's something going on.

[ thunder cracks ]

All right,
I'm gonna press record

and I'm gonna start going.
‐ Go, go.

‐ 'Cause we're racing
against the clock here.

Rain's definitely
not ideal for this.

‐ Watch that rock right there.

‐ We are seeing some responses,
which is a‐‐

maybe gives us
a little bit of hope.

Why don't we run
another one back,

get a couple more examples,
so let's‐‐

‐ Let's do that.

‐ Let's go in and analyze
the data together.

‐ Dan only needs to collect
a few more GPR readings

for a complete scan
of the back door site,

but a fast‐moving tropical storm
looms on the horizon.

‐ You know, a typhoon coming in,

it's not like it's
just a little rainstorm,

might just pass by.

You know, we're gonna
be in for some weather,

and just pray that we
get a window

that we can actually
use this thing.

And now, Mother Nature
is saying,

"No boys, not today."

All I can do is just
keep my fingers crossed.

Anything interesting?

‐ We're seeing very
small responses.

‐ So, you‐‐you're seeing
an anomaly right there?

‐ Well, it's something
that we kinda would expect

from a possible tunnel.

It's hard to make
determinations in real time.

That's why it's better
to collect it‐‐

go back, maybe process it,
clean it up,

and then start
to analyze it as a group.

‐ Let's fold this up
and get back to base camp.

‐ All right, sounds good.
‐ All right.

‐ So we‐‐just going
over the data from today,

we actually did
get a response, okay?

‐ Super.
‐ Yeah, that's great news.

‐ So‐‐so we got this hit
at about 40 feet, okay?

So over here,
what you have is this arch,

which we would expect
from a tunnel

or a void of some sort.

‐ These lines are telling you
that this might

be a void or a tunnel.

‐ It might be.
‐ Might be.

‐ The only way to verify
what this response is

is to take a drill
and peek in.

a large grid area, doing

and we got this hit right here.

‐ Awesome.

‐ So this is where
I would drill.

‐ As a major storm gathers,

a GPR scan has revealed

what could be a void
or even a tunnel.

The plan is
to drill down 40 feet

in an attempt to access it.

‐ I agree with you.

That's a good place
to start drilling.

Great job.
Thank you so much.

‐ No problem.
‐ Yeah.

‐ Yeah, that's awesome.
Perfect.

‐ We gotta get you outta here
before the storm gets any worse.

‐ Yeah, absolutely,
before the storm gets in.

‐ All right, let's go.

‐ The next day,
Typhoon Mangkhut,

a category‐5 super typhoon,

strikes the Philippines.

‐ The second‐biggest
typhoon ever recorded

is hitting us today.

Can't get any work done.

Very risky,
to even get out there

and walk around.

You could get hit
with a tree limb,

could be washed
right down the river.

Mudslides are getting bad‐‐

just wipe us right off the hill.

It's not a good thing at all.

You know, I'm worried
about my team,

my crew, everybody here.

This isn't even the worst
of the storm yet.

Forecast is that this
storm will last all day,

possibly into tomorrow.

We're gonna wait it out,
we'll hunker down.

And with the GPR possibly
revealing a void,

we're so close to finding
our way into this mountain.

Hopefully this will pass soon
and we can get back at it.

‐ After 24 hours
of intense rain and wind,

the storm passes.

The team reconvenes
at base camp,

eager to get back to work.

‐ I checked on
all the equipment,

I checked on Grandpa,

everything is okay.

‐ If that storm was
any indication of, you know,

what's in store for us
in the future here,

with all this monsoon season,

we gotta get moving.

We're losing time
pretty fast here.

‐ You think that the typhoon
has impacted our search?

‐ The Japanese engineers
were pretty smart.

You know, they were planning

to come back
and get this treasure,

you know, maybe ten years,
a hundred years,

a thousand years from now.

So any place they
would've put markers

would've been etched into stone

that wasn't gonna go anywhere.

The storm may have
uncovered something

that we didn't see before.

I'm gonna take Manny out

and maybe we can find something
that we never found yet.

Let me grab him
and we'll get it done.

‐ I'll get the drill ready,
you go do some more searching.

‐ All right, cool.
Sounds good.

‐ John and Manny head out
with a metal detector

to see if the typhoon
cleared away foliage,

revealing any new clues.

‐ Just keep your eyes open,
Manny.

That's what I'm hoping for,
some easy pickings today.

Hey, you never know,
you might get lucky.

‐ Oh, there's a freshly
downed tree right there.

Maybe the wind took it over.

That windstorm that we had

just ripped it
right out by the roots.

Oh, yeah.

Still‐fresh fallen trees
like this,

if, you know,
we leave them sitting here

rotting away like that,

if there was
any markers on there,

they're gone forever.

Maybe just do a quick
scan around it.

‐ You see any signs
or symbols?

‐ I don't.

‐ There's more trees up there.

‐ Yeah, let's give it a shot.

‐ Meanwhile,
at the back door site,

guided by the GPR data,

Peter marks the exact spot

where they believe
the void may be,

40 feet below.

‐ In between
these flags right here,

there is an anomaly‐‐

we think a void.

‐ Finally we get
to do something

we know what to do.

Here we go!

‐ Heavy equipment operators
Brad and Jeremy

have located a drill

capable of cutting
through bedrock,

and maneuver it into position.

The GPR results
show a possible void space

40 feet below,

but getting that deep
with this older machine

won't be easy.

‐ This is what we came for.

Came halfway around
the world to find a tunnel,

and that's what me and Brad
are gonna do‐‐

find a tunnel.

Easy, easy!

Right on the money, baby.

‐ Right on the mark.

‐ Good deal.

‐ That's how it's done.

Man, this is‐‐
we're there.

‐ Yeah.
‐ We're there. The first step.

‐ With the drill in position,

Peter joins Brad and Jeremy
at the back door site.

‐ Hey, guys.
‐ Hey.

‐ Couldn't you find
something older than this?

‐ Yeah, it's okay.

‐ This thing is older than me.

‐ We're gonna work
with what we got.

‐ Now that the drill
is on the mark,

the team assembles the rigging
to lock it into place.

‐ Oh, nice job,
we're getting ready to drill.

This is getting exciting now.

With this drill,
we're gonna prove

that there's something
down 40 feet in that ground.

We did see some anomalies
on the ground‐penetrating radar

that show that there could
be a tunnel or a void there,

and this drill is
gonna take us to that spot.

You all set?
‐ We're ready.

‐ You're all set?
Fire this baby up!

‐ Here we go, fire it up.

[ engine rumbling ]

‐ Like many older models,

this gas‐powered drill
requires constant water cooling

and careful operation.

If the drill overheats,

it could permanently fuse

with the rock inside the shaft.

‐ Let's put it in the ground.

‐ At the back door site,

the team continues
to drill down

to the desired 40‐foot depth

in order to verify
the existence

of a potential tunnel
that may run

all the way
from the turtle rock

under Breach 6
and end at this location.

‐ There you go.

‐ The metal drill stems
that connect to the bit

are only 10 feet long,

so the team attaches
another length of pipe

in order to continue down
to a potential void,

which they hope contains
whatever Yamashita hid here.

‐ With their new stem
attached,

the team is now capable
of drilling 20 feet‐‐

halfway
to their 40‐foot goal.

Meanwhile,
John and Manny investigate

the recently thinned‐out jungle

to see if the typhoon
revealed any new clues.

‐ Yeah, it looks
like an old tree, huh?

‐ Yeah.

‐ That's a mango tree.

‐ Wish it had some mangos on it.

‐ Why this tree, John?

‐ Well, look at the size
of this thing.

It's gotta be
over 100 years old.

It was here
with the Japanese here,

it was long‐‐
it was here probably 30 years

before they even showed up.

So it makes just,
you know, perfect sense

to check trees like this.

You know, just keep
an eye out, look around.

I'll tell you, you're
looking out for anything

that's kinda out of place
on this tree‐‐

any markings,
any scratch marks,

cut marks
that are healed over.

Anything that looks like,

you know, it's a marker
of some sort.

‐ According to the team's
Golden Lily research,

Yamashita's engineers
often carved markers

and symbols into trees,

usually acacia and mango,

due to their longevity
and robust trunks.

It is alleged former Philippine
president Marcos' wealth

was based in part
on his recovering a piece

of Yamashita's treasure,

and it is rumored he ordered
many trees with symbols

cut down in order to hide them

from other prospective hunters.

‐ Nothing on this side
that I see.

‐ Yeah, let me get a scan
on the metal detector.

[ metal detector signal
wavering ]

‐ What you got?
‐ You hear that, Manny?

This hit is directly in line

with that piece of metal.

‐ You see anything there?

‐ I do, I see
an old piece of wire

sticking out of the tree,
grown right into it.

It looks like it was
a piece of barbed wire.

And why would there
be a piece of barbed wire here?

There's no other
trees to attach it to.

That's pretty curious, actually.

When the Japanese were here,

I mean, they could've
put this wire in,

it could've been
a defensive position,

so they were
putting wire down low.

In case anybody came up,
they'd get snagged on it.

But it certainly wasn't
put there yesterday.

You know, it's been there
for quite some time.

All right, Manny, well,
more trees, my friend.

Let's go.

We should check out this tree
over here that's down.

It's still got
green leaves on it.

Must've blown over in the storm.

Oh‐‐oh, crap,
check that out.

Look at this‐‐look at that.

That has‐‐that's been
in there for a while.

That's carved in there, man.

That ain't no natural thing.

‐ Yep.
‐ That's a box marker.

‐ In the Golden Lily code,

a box marker is believed

to indicate
a deposit of treasure.

The discovery
of this box marker

could mean treasure
is located

near this fallen tree.

‐ Let me get
the detector fired up

and we'll check everywhere
around here.

‐ Yep.

[ metal detector signal
wavering ]

‐ I'm not getting any hits.

Get your knife, too,

so we can start picking away
at this rotten root.

Just keep digging around here.

I hope it's something
and not junk.

Man, this tree is like
a perfect candidate.

I mean, you couldn't
ask for a better marker.

You'd think for sure
there'd be something there.

Manny, if there was‐‐

if there was anything
around this tree,

we would have heard it

‐ Pretty disappointing
that there's no treasure

under that tree.

Couldn't ask
for a better marker,

we know the Japanese
were here,

and there's no
treasure under it,

and that's the way it goes.

Sometimes you win,
sometimes you lose.

Defeat is part of the game.

‐ At the back door site,

Peter, Brad, and Jeremy
are making good progress

drilling down
to their 40‐foot goal

in the hope of reaching
a potential void space,

and possibly a tunnel
inside the mountain.

‐ All in all,
it's going pretty smooth.

This old thing's doing a lot
better than I thought it would.

We haven't hit a tunnel yet.

We gotta keep on trying, though.

[ clunking ]

‐ Ho, ho, ho.

‐ The drill is free‐spinning,

which could mean
they have hit a dense layer

the diamond‐tipped bit
can't penetrate.

So we're at 35 feet about now,

but we're not getting anywhere.

It's not cutting
into that rock whatsoever.

It'd be foolish to keep on
doing what we're doing.

‐ So we're at 35 feet about now,

but we're not getting anywhere.

It's not cutting
into that rock whatsoever.

It'd be foolish to keep
on doing what we're doing.

‐ At the back door site,

the team is only five feet away

from reaching
their 40‐foot depth,

but they've hit
a hard layer of material,

bringing drilling
to a standstill.

‐ What happened, Pete?

‐ John joins the team to see
what's holding up progress.

‐ We're not getting anywhere.

It's not cutting
into the rock whatsoever.

‐ How deep are you now?

‐ We're about 35 feet.

‐ Oh, so you're right
on that first anomaly zone.

‐ Oh, it's‐‐we're so close
to the anomaly zone, yeah.

‐ I guess you're
gonna have to see

what it looks like
down there.

‐ So we're gonna pull it out.

‐ Should we pull the pipe?

‐ All right.

‐ To get a look
at the dense layer

that has brought drilling
to a halt,

the team pulls the drill stems
from the hole

to examine a core sample.

‐ What the hell
did this thing hit?

Check that out.

‐ Whoa‐‐it had to hit
something awful hard.

Look how it's flattened out now.
‐ It's ruined.

‐ Flattened and rounded.

‐ The bit's no good any more.

‐ It's actually
chipped over here, too.

‐ Damn, we hit something so hard

that it's destroying the bit.

‐ It appears a dense layer
of material 35 feet down

has ground the teeth of
the diamond‐tipped drill bit

to nubs.

‐ It's so close
to the 40‐foot mark.

‐ Let me see the core
if you can.

I'd like to see what's‐‐
what you actually hit.

‐ It's full.

[ metal tapping ]

This stuff is really‐‐
really hard stuff.

Harder than we've ever
seen in our drilling days.

‐ Does it look like
concrete to you?

‐ It could be concrete,
it's hard to say.

‐ All right, guys,
we're at a standstill

until we can figure out
what's stopping us.

‐ We have a dilemma now.

We've hit something
really, really hard.

It could be bedrock,
but bedrock has never

chewed up my drills
like this is.

I've worked with cement
for 50 years

in construction
on different sites,

but I've never seen this‐‐
this quality.

It's so strong, so hard.

‐ How do we know
this is really concrete?

‐ We don't really know,
but I'm assuming

because it was so hard
to drill through,

that it could possibly
be bunker‐grade concrete.

And if it is
bunker‐grade concrete,

then we're on the right track.

‐ What do you mean?

‐ We know that Yamashita
was invited to Germany

and he met Hitler.

‐ In December 1940,

General Yamashita
was sent to Berlin

on a six‐month mission
to meet Adolf Hitler

and officers
of the German High Command.

‐ [television announcer
speaking German]

‐ During this visit,

Yamashita is known
to have inspected

the hardened bunkers
along the French coast,

and it is alleged
he may have obtained

the Nazis' secret
concrete formula

directly from Hitler's
top engineers.

‐ So Yamashita knew Hitler.
‐ Yeah.

Hitler gave him the secret
to bunker‐grade concrete.

‐ Nazi concrete?
‐ Yeah.

‐ The Nazis were teaching the
Japanese how to make concrete?

‐ I think so.
‐ Wow.

‐ They had some, you know,

stuff that bombs
couldn't get through.

And they shared that
with the Japanese,

and the Japanese said, hey,

you know, this is great stuff.

We can use that to hide
and protect all our treasures,

and no one will be able
to get through it.

A bomb won't
even get through it.

‐ During World War II,

while the Allied Forces
were strengthening

their air and sea defenses,

Germany focused
on land‐based fortifications,

constructing bunkers

made of a special
reinforced concrete.

One such stronghold
was the Wolf's Lair,

Adolf Hitler's top‐secret
headquarters

on the Eastern Front.

Even after deliberate
demolition efforts

by the American forces
after the war,

the main complex
still stands today.

In the Pacific,
the Japanese forces

were also constructing similar
bunkers and tunnel systems.

It is possible
they may have used

the Nazis' secret
concrete formula

when building their infamous
tunnel defenses

for the battles
of Iwo Jima and Okinawa.

‐ So now what?

‐ All right, guys, we're
gonna send this off to Bingo

and have this tested to see
if it is hardened concrete,

or what it's made out of.

‐ Days later,
back in the United States,

head researcher Bingo Minerva

visits a geologist
and concrete expert

to examine the core sample
unearthed by the team

in order to determine

exactly what they're
trying to drill through.

‐ Hey, Gerard.
‐ Hey, Bingo.

‐ Hey.
Good to finally meet you.

I brought
some samples with me,

and I wanted to see
if you can at least

help us verify
what we're dealing with.

You know, the guys,

they're at
a total standstill,

they're breaking through bits

and these are the two samples
that they sent me.

Just by looking at these,
I was wondering what

you can tell me about them,
if anything.

‐ Hm...

it looks potentially
like bedrock of some kind.

It's very gray rock.
Okay.

This one's kinda
interesting here.

This one's got
some smaller material,

almost looks like
sand particles in here.

And there's kind
of a gray cast to it.

Interesting.

Let me take a look
at something else here.

‐ After studying
the sample from Bingo,

Gerard believes he has
an example of concrete

that matches it.

‐ So take a look at this.

This is shotcrete,

which is typically
used to build pools,

to line tunnels,
things like that.

And this shotcrete is made
of Portland cement and sand.

Now it's kind of gray.
This is definitely gray.

And notice how there's
no coarse aggregate in this.

‐ Yeah, no big pieces in either
of them, very similar.

‐ In either of them.

And look‐‐we have some
sand‐sized particles in here.

Got a lot of sand
in this shotcrete.

There's a similarity there that
we're gonna want to look at.

And so we're gonna have
to spend some time on this.

‐ Well, I can't wait
to hear some results.

‐ The next day,
the team gets the results

from concrete specialist
Gerard Moulzolf.

‐ Hey, Gerard.
‐ Hey, guys.

‐ We hear you have
some information

on the concrete samples
we sent you.

‐ Yes, this is the one core
sample that we received.

And while this‐‐
while this core here

looks like
it's got sand in it,

which looks like
it's Portland cement‐‐

‐ Mm‐hmm.

‐ Oh.
‐ Hm.

‐ In base camp,
the team is receiving

the final report
on the core samples

from geologist and concrete
expert Gerard Moulzolf.

‐ It is actually
an extruded lava flow.

In the Philippines,

that whole core of the island

is made of volcanic material,

a great majority
of the island.

‐ Well, if we do come across
a concrete‐like substance,

is there a way to tell
the difference in the field?

‐ Now this is a concrete
that was made in Guam,

and this is
essentially a coral.

And the mixtures
that would've been produced

by the armed forces from Japan

that maybe are doing
something very quickly,

they probably would've
hand‐mixed it with a shovel.

‐ With a US blockade
surrounding the Philippines

and resources dwindling,

it is believed
the Japanese engineers

may have used any possible
materials available

as aggregate in their concrete,

including crushed coral
and seashells.

‐ You're gonna see chunks
of shells, chunks of coral,

you know, chunks of reef rock,

if they were using
that type of aggregate.

‐ Gerard, thank you
so much for your time.

‐ Thanks.

‐ Well, that was very
interesting, guys.

‐ That was interesting.

‐ But that was
not the information

I really wanted to hear.

We're gonna have
to find another way

to get into this back door.

‐ Well, I still believe

that this is our way
into the mountain.

Suppose the drill‐‐

cause it's only drilling
a five‐inch hole‐‐

suppose it's just hitting
a small section of hard rock.

We do have the ground‐
penetrating radar that says

that there is a void
there at 40 feet.

We're down 35 feet.

We have five feet to go.

Let's stay there and do this
until we find out

for sure is there a tunnel there

or there isn't a tunnel there.

‐ That's a lot of time
drilling.

We don't know how
long it's gonna take.

‐ Well, we'll pull up the stems
and I'll change the bit.

‐ But we could burn up
the drill.

‐ Well, that's a‐‐that's a risk
I'm willing to take.

If we burn up the drill,
we burn up the drill.

I have to stay and find out
if there is a tunnel there.

We're five feet
away from the void

that the ground‐penetrating
radar

showed us was
definitely there.

I can't leave now.

This is our best way in.

Let's go, guys.

Let's get back to drilling.

‐ I don't care
if we go through 50 bits,

I'm gonna get down
to that 40 feet

one way or the other.

‐ At the back door site,

the team is only five feet away

from reaching
their 40‐foot depth,

but they've hit a hard layer
of material,

bringing drilling
to a standstill.

Adding a fresh bit,

they resume their efforts
to punch down

into a potential void below,

which they believe
could be a tunnel

intended for members
of the Golden Lily

to recover their treasure
after the war.

‐ I hope we get all the way
to the bottom today,

go right into the tunnel.

‐ Ready to fire it up?
‐ Go ahead.

[ engine clattering ]

‐ I don't care how fast you go,

as long as it keeps going down.

‐ Brad increases the drill speed
to its maximum

in order to bore through
the layer of hard volcanic rock.

‐ To determine if they've
cleared the hard layer of rock,

Peter checks the slurry
that comes out of the hole.

‐ Look what I found‐‐

a little piece of a seashell.

According to
our concrete expert,

the Japanese,
when they ran out of sand,

they mixed some type
of coral in their cement.

This seashell could
be part of that process.

I mean, it's a wild theory,

but we're not gonna
discount anything.

‐ Earlier, we got
down to 35 feet,

and then we hit
something really hard.

We're about five feet

from where the radar
picked up an anomaly.

‐ It's something
that we kinda would expect

from a possible tunnel.

‐ Okay. All right.

‐ That anomaly, we're hoping,
is the ceiling of a tunnel.

Now we find bits of seashells
in our cuttings.

‐ Pieces of seashell
in the slurry

may be evidence
of Japanese concrete

from a Golden Lily
treasure tunnel.

‐ But we're getting close.

‐ Up on the mountain,
the team has been attempting

to drill down
to a depth of 40 feet

to verify the existence
of a potential void space

behind what they believe

is a back door entrance
into a tunnel

may run
from the back door site

directly to the turtle rock.

‐ Right here‐‐
it's chugging along!

‐ The water inside the hole
suddenly starts to drain.

‐ This is an indication
the drill

may have punctured the roof
of a possible tunnel.

‐ How deep are we?

‐ Just past 40 feet.
‐ Just past 40 feet.

‐ Yep.
‐ So that's no coincidence.

There's something
going on at that level.

‐ The only way bubbles could
be coming out of there

is if there's a tunnel down
there with air in it.

‐ So what do we do next?

‐ Next thing is that
we're gonna drop the camera

down there
and see what we got.

‐ Sound like a great plan to me.
[ laughter ]

‐ That's what we've
been looking‐‐

‐ That's what we're here for.

‐ That's what we're going for.

‐ Took us a while to get here,

but we're at that point
for taking pictures.

‐ Well, let's get to it.
‐ Okay, guys.

‐ To verify what's underground,

John brings the probe camera
to the drill site.

‐ How's it looking, boys?

What, did you lose water?

‐ A lot of water, lot of water.

Let's get that camera
down there.

‐ All right.

With the water
disappearing down this hole,

I'm pretty sure
we're on that void space.

I wanna get a camera
down that hole

and see if we're
on this void.

All right, let me do this.

We're in the dry section
of the hole.

All right, you're coming down,

nice and easy.

‐ What's the measurement?

‐ Twelve feet...

Seventeen feet.

‐ Go ahead.

You're in the hole,
keep going.

You're smacking up
against the side, hold on.

‐ Twenty feet.

‐ You're in the sidewall again,
come back to center.

‐ Twenty‐six feet.

‐ Keep going, go ahead‐‐

‐ Thirty‐three feet.

‐ You're good, you're centered.

‐ Thirty‐five.

Looks like we're gonna go
swimming here shortly.

‐ Yep.

I see the water coming up.

‐ Let's take the plunge.

‐ We're right at 40.

‐ Hold it there.
Don't go down any further,

because I can't
see the side wall

of the pipe any longer.

Give me a slow twist in a 360.

I'm not seeing any side walls
whatsoever, Pete.

‐ Let me take a look at that.

Just‐‐like, I have
to see for myself.

This is really important.

‐ Take my seat.

Now twist slowly, Brad,

so you don't muck
the water any more.

You just see water.

‐ Oh, yeah.

I don't see anything.

‐ I think it's a void.

It looks like you're actually
in a void space now.

‐ On the next "The Lost Gold
of World War II"...

‐ There we go. [ laughs ]

‐ Here we go.

‐ I had no idea that my brother
was connected with the CIA.

‐ Do you have any documents

or any other proof
of CIA involvement?

‐ Yep, come with me.
Let me show you some things.

‐ Come on over
the cliff edge here.

‐ All right, coming.

‐ You're not
gonna believe this.