All language subtitles for The Curse of Oak Island - S12E05 - A Flood of Secrets WEBDL-1080p.mkv

Tonight on
The Curse of Oak Island...

-That's a beam.
- Yep.

Somebody stacked those cobbles.

This might be part
of the flood tunnel.

Wow.

If that is strapping,

that would be on a chest.

Yes. Now, that is interesting.

We're gonna insert this radar

- to look for voids.
-Okay.

127 feet from the surface,

we get a void space.

This could be
the fabled offset chamber.

where people
have been looking for

an incredible treasure
for more than 200 years.

So far, they have found
a stone slab

with strange symbols
carved into it,

man-made workings
that date to medieval times,

and a lead cross
whose origin may be connected

to the Knights Templar.

To date, six men have died

trying to solve the mystery.

And according to legend,
one more will have to die

before the treasure
can be found.

Here we go.
It's gonna be sloppy today.

Yeah, it is.

that shroud a new morning
on Oak Island,

the hope of a major discovery
remains high

for brothers Rick and Marty
Lagina and their team

as they dig at Smith's Cove

for clues that could help solve
a 229-year-old mystery.

-Hey, Craig.
- Hello.

- How's it going today?
-It's going good, mate.

No fantastic artifacts just yet,

but I'm hoping for them
to come up, whatever they are.

And Rick pulled out
a really nice piece of concrete.

- Concrete?
-Yeah.

And I believe that's part

of the story of this area.

Let's make some
treasure headlines today.

Okay, Gary. We're ready.

the Oak Island team
began an excavation

in search
of a stone-lined flood tunnel

which is believed
to feed seawater

into the original Money Pit

in order to protect
the fabled treasure vault.

After studying a detailed
survey map of the area,

which was created

by the late treasure hunter
Bobby Restall Jr. in 1963,

the team was able to reach
a depth of some 30 feet,

where they made a potentially
critical discovery.

This is the first bucket

that has a bunch
of same-size cobbles.

That is the description
of the flood tunnel.

of the flood tunnel...

- Is it concrete?
- Yeah.

which may be the same material

that the Restall family
mixed and used

during a failed attempt
to plug up

the fabled booby trap
back in the 1960s.

Emma is testing it,

so we may be able
to get some answers on

what range it may come from.

- Well, I'm ready
to find something.
- Yeah.

- Same here, mate.
- Okay. Sounds good.

to not only confirm the location
of the flood tunnel

but also track it back
to the Money Pit area,

and determine just where
the treasure may be buried

deep below ground.

- Hey, Rick.
- Hey.

Kind of soupy, eh?

Yeah.

we follow that up, it should be

a direct line
to "X marks the spot."

And that's my hope,

that ultimately,
we solve this mystery

for all the people
that have come before us

looking for answers.

There's something right there.

That is one weird-looking board.

Yeah.

Hey, Billy.

- What's that?
- It looks like there's a board

right at the water level
right now.

- Do you see it from there?
- I think so, yeah.

I'll see if the water
that's in the hole

- might help clean it off.
- Okay.

It does look shaped.

I'm gonna give Steve a call,
have him mark it.

for something
that was built by human hands.

Lo and behold, there's a board.

I am curious about
who built this structure,

searchers or original depositors.

It's difficult
not to want to go down

and put your hands on it
and take measurements.

Unfortunately, it's too deep.

Hey, guys.

- Steve.
- Hey, Steve.

If you'll step
right where I'm at

on this side, kind of,
see a board sticking out?

Yep.

Two boards, on this side.

Yeah, I see that.

Yeah, it looks like
it's pretty much on top

of the projected line.

I mean, the Restall survey plan
from '63 is quite accurate.

So, if the flood tunnel
was gonna be down here

and they really did find it,
it looks like

this wood lines up
with the potential flood tunnel.

- Yep.
- We're-- just got to keep going.

It's worth digging.

later that morning...

Well, welcome everybody.

The reason for
today's meeting is,

Jan Francke, who is gonna
bring some real interesting

technology to bear.

- Yeah.
- Absolutely.

of the team meet in the war room
with Dr. Jan Francke,

a world-renowned
ground-penetrating radar expert

who has not only designed
technology for scanning

the pyramids of Giza but also
the subsurface of the Moon.

We all know that Dr. Fred

and Dr. Spooner
are currently resistant

to additional drilling
in the so-called "Golden Egg."

Yeah.

We have a core.

the Oak Island team
has been conducting

a core drilling operation
in the so-called Golden Egg,

a 30-by-15-foot oval-shaped
area in the Money Pit

where groundwater testing

has identified a large source
of precious metals

somewhere between the depths
of 80 and 120 feet.

Nothing to write home about, unfortunately.

and recovering no solid
evidence of treasure...

We'd like to stand down on
drilling in that area right now,

and let the site
sort of settle, if you will.

and hydrogeologist
Dr. Fred Michel

have directed the team
to temporarily halt

all drilling
within the Golden Egg.

This will allow
the groundwater to settle

while they conduct
new water tests.

I'm gonna turn it over to Craig

because he found Dr. Francke.

Craig Tester has
reached out to Dr. Francke

to see if he can offer
another scientific avenue

to help pinpoint the location
of the believed treasure.

So, we've run ground-penetrating
radar in the past,

and I'm always looking
for updated technology,

and one thing that he does have
is a borehole

ground-penetrating radar.

And-and I'll let you
go into the details

- of the tool.
-Sure.

Now, my background

is a geophysicist,
and I designed GPR systems

for a variety of applications.
And so,

this is a hundred-megahertz
borehole radar antenna.

The idea with the borehole radar
is to combine

all-in-one, self-contained tube,

which is what
we have here today.

So, what we hope to see
are very obvious targets.

It'll be of interest to all
of us, I can guarantee you that.

is a device that sends
electromagnetic pulses

through the earth
which can identify anomalies

such as structures,
voids and metal objects.

When you're looking at
a borehole

in your environment,
it's kind of like looking at

a painting through a straw.

And what I'm hoping to do
with this technology is expand

the size of the straw
a little bit.

So, if you run this equipment

around the Money Pit,
you're rather sure

that if-if there is a treasure
or some sort of a vault,

you should be able
to pick up on it?

Yeah, I would, I would think

we're looking for an air
or water-filled void.

That would be
a very strong reflection.

So, what we'll see is, if
there's any target underground,

we'll know the depth
and we'll know

the approximate distance
away from the hole.

- Mm-hmm.
- Perfect.

We certainly believe
there is something there.

Let's hope that this device
will provide those answers.

Absolutely.

-So, good luck.
- Let's do it.

while Jan Franke
begins to conduct

ground-penetrating radar scans

in boreholes located
in the Golden Egg...

You can see
the third board there now...

Yeah.

...on the bottom of that row.

Yep.

have rejoined other members
of the team at Smith's Cove,

where Billy Gerhardt
has just uncovered

more potential evidence

of the believed
man-made flood tunnel.

I mean, somebody had
to put those boards there.

It's a curious thing.

- What the heck is it?
- Yeah.

Billy.

Can you dump
a couple buckets on the wood

to try to clean it up
a little more around it?

There's a flat face

about six or eight inches
under it.

only partially exposed
in the moment.

We're looking for anything
out of the ordinary in the area.

And here we're seeing
something out of place,

but there has to be more.

I was hoping something
would show there.

Yeah, me, too.

- There she goes.
-Oh, yeah.

It's going more. Look at it.

Watch out.
There's a crack right there.

- Ooh.
-Oh, yeah.

Ooh...

That whole thing's going.

Wow. Wow. Wow. Wow. Wow.

- Ooh...
- The whole thing's going.

That whole thing's going.

Wow. Wow. Wow. Wow. Wow.

It is a tense
and potentially dangerous moment

at Smith's Cove.

A section of the trench

that the Oak Island team
is excavating in search

of the legendary flood tunnel

has suddenly begun to cave in.

There is a board.
You were right.

That it, you see it there?

Yep. That's a big board.

We should grab that

- before we start digging,
you know?
-All right.

Oh, there's a beam, too.

Look at that.

I don't think that's a board.

It's a rock, isn't it?

-Rock?
-Concrete.

-Oh!
-Wow.

Look at that.

Oh, yeah.

See this?

It's not
uniform thickness. Right?

- Thicker here than it is here.
-Over here? Definitely.

This is where Emma is gonna be
incredibly helpful.

- Yes.
-She said she can,

you know,
with the different mixes,

- she may be able to define
a decade or decades.
- Okay.

So...

We should just
leave it like it is.

that this concrete was made
in the 1960s,

it would likely mean
that it was created

by the Restall family
and that their efforts

to locate the believed
flood tunnel that feeds

seawater into the Money Pit
could soon pay off.

Let's take-- let's go
take a look at that beam.

We found concrete
and then we find a huge beam.

It's evidence of work
by human hands.

It could represent
previously unknown work.

It's exciting.

There might be something here

that will speak eloquently
to what happened here.

That is one big beam.

I would think this would be
too massive for Restalls.

Oh, yeah.

It doesn't look like
it's been cut by a machine.

- No.
-It looks hand-cut.

If the team is correct

that it wasn't placed here
by the Restall family,

could it be connected

to whoever created
the flood tunnel

and hid a vast treasure
in the Money Pit long ago?

When it caved in,
it sure looked like this was

the only thing,
that and the concrete.

Why those two things
by themselves?

There's no reason to stop

because you've got
so many unexplained things.

Yeah.

certainly is highly suggestive
that we're in the area

of the Restalls' efforts
to block off the flood tunnel.

Unfortunately, the flood tunnel
eludes us at this point.

But maybe we are getting close.

There's a chance that we may
find more things today.

I think it's just a matter
of continuing what we're doing.

Keep digging.

in the Money Pit area...

All right.

Well, let's take
the borehole radar out

- right now.
- Okay.

Dr. Jan Francke to assist him

while he scans another borehole

with his specialized
ground penetrating radar device.

We have
a transmitter on one side

and a receiver on the other,

and it's all fit
inside a tiny tube.

There's a computer
on board as well.

So we're gonna be logging
all the data inside the hull.

So we have two little batteries
that we're going to insert

and once we do that,
it's gonna start up the radar

and it'll be collecting data.

And then,
we'll have a little app

- that we can control it with.
- Okay.

All right. Let's go ahead
and put this in.

that could tell us that
there's a flood tunnel nearby.

It could tell us
if there's a, you know,

a treasure nearby,
a shaft nearby.

Okay, this is
the next borehole we want to do.

- Okay.
- It's, uh, HN-16, it's called.

As you can see,
the Garden Shaft is right there.

borehole HN-16 sets

just 18 feet north
of the Garden Shaft:

the 18th-century structure
where one year ago...

...the team encountered
the possible flood tunnel

while conducting
a probe drilling operation

in search of the treasure

some 100 feet underground.

There's some theories that, um,

the treasure is hidden

off to the side in-into a tunnel

that was dug off
from the main Money Pit.

So if this can image

five, ten, 15 feet out or more,

it'd be fantastic.

Yeah, that's the idea
of a borehole radar.

So what we're gonna do is

insert this down slowly
and it's going to track

all the way down and look
all around the-the drill hole.

Okay. Let's get started.

The recording is all done

at the tool down hole...

And down she goes.

what the tool is seeing
until he can

download the data
and process it.

Okay. And downloading data.
And we got it.

some indication

that the treasure is nearby,
indications of a vault

in the Golden Egg.

I don't know how far out
it's going to see,

but if we can see 15 feet,
that would be great.

But let's see what we see.

Sounds good.

Hello, guys.

-Hey.
-Hey, Marty.

-Hi, Marty.
-Hey.

This is
a very interesting war room.

along with Rick Lagina

and other members
of the team meet

in the war room as Marty Lagina

joins them via video conference.

We have here, probably

the most interesting find,

something that might corroborate

what the Restalls attempted
to do many years ago.

a scientific report
from archaeometallurgist

Emma Culligan regarding
the large pieces

of concrete that were recently

unearthed at Smith's Cove.

This is indeed concrete
'cause concrete is

cement, aggregate and sand.

And this is a pretty simple
cement-concrete composition.

Emma scanned the concrete

with an X-ray
diffraction device--

or XRD-- which uses X-rays

to determine
the chemical composition

and physical properties
of materials.

What's really cool about it is,

in the XRD, I did get
a portlandite trace,

which kind of puts it in
the group of Portland cement.

of limestone and clay or shale,

Portland cement is the most
common type of cement used

in modern-day construction.

It is often mixed with sand,

gravel and water
to make concrete.

There's only two locations

in Canada that have portlandite

and that's Quebec
and then there's B.C.

And this is most likely
Quebec-sourced.

All of the aggregates
and sand are most likely

Nova Scotia-based
'cause those are all

compositions that I normally see
in our soil and sand.

So there's
a few key things that can

narrow down a date
for this cement.

So the Quebec location started
hydraulic mining in the 1920s.

And this is
hydraulically-mined cement.

I don't think
it's anything post-1980s

cause it's missing
modern concrete mix.

So I can narrow it down to...

...1920s to 1970s cement.

Because it's porous,

the aggregates are not
evenly placed throughout.

So it was rushly made.
It wasn't mixed thoroughly.

So it would kind of fit

the whole storyline

of, like,
filling in a floodgate.

This concrete could fit
the period of the Restalls

during the 1960s.

where the Restalls thought
the flood tunnel was.

I think what sits
in front of us...

thanks to Emma

for corroborating
that this, indeed, could be

part of the Restall effort.

Emma Culligan has just presented

scientific evidence

that the cement unearthed
by Rick Lagina

and the team at Smith's Cove

may have been used

by the late treasure hunter
Robert Restall

and his family in 1961

during a failed attempt

to seal up
the so-called Vertical Shaft,

an approximately 32-foot-deep,

1.5-foot diameter
stone-lined hole

believed to be connected
to the legendary flood tunnel

that feeds seawater
into the Money Pit.

Might this piece of concrete
offer critical evidence

that the team may be close
to locating the flood tunnel,

which could lead them

straight to the Money Pit
treasure vault?

They thought
that was the spot

to shut off the flood tunnel.

That's why they wanted
to cement it.

And they recorded it as having

a direct impact
on the flow of water.

So there was definitely

some sort of connection there.

Exactly.

Look,

I'm heartened by it.

The Restalls' understanding

of the location
of the Vertical Shaft

was very important to them
and it should be to us.

So having said that,

let's try to find
the Vertical Shaft.

So, this is
our Smith's Cove survey.

We're currently
sitting right here.

In that same area, that's
where we found the concrete,

along the projected line
of the flood tunnel.

And that's really
important to us because

it confirms that the flood
tunnel system is real.

And it confirms
that the Restalls were

in the right place.

We're following
a trail of clues.

And I think it's important

to continue this work.

So, I am heartened by this.

I think we're
on the trail of something.

So, the only way to do it

is to get back out there.

- Let's dig.
- Let's do it.

-Thanks, Marty.
-Yep. See you.

Wow, there's
nothing in here.

This is quiet.

...at Smith's Cove,

Craig Tester
supervises the excavation

to locate the vertical shaft
and believed flood tunnel,

an excavation which experienced

a potentially dangerous
cave-in just one day ago.

Hey, Billy.

Hey. So, my thoughts are

we just go further in the center

to see if there was any rocks.

Okay. Well,
I'm good with digging deeper

and see how it feels.

- Right.
- Yeah, we're going to weigh it

on the outside now,
just in case that caves.

- Okay.
- Yep.

At the surface, it was
just a small mound of rocks,

and below that,

it was a rock-filled hole,

but it went down
a significant depth.

So, we're looking
for small boulders

as we're digging down
deeper and deeper.

But one concern we do have is

the sides might cave in.

So, we're watching out very
closely for safety purposes.

See the beam that fell in
in that corner?

Yeah.

It is still kind of in line

where Steve put that orange mark

for the potential flood tunnel.

Yeah, it is in line
where that is.

Might be able to test it

and get some good
dendro dates off of it.

Yeah.

found over 30 feet
below the beach?

Is it possible
that Billy Gerhardt

has just unearthed
another clue suggesting

that the flood tunnel
may be located nearby?

you never know what's original
and what's searcher,

and that's the whole key
is distinguishing the two.

So, anything you can start
dating helps us determine

the time frame of
the wood going in place

and if it's associated
with the flood tunnel.

We've got to keep going.

Every time we make a scoop,

- we're finding something else.
- Yep.

That's for sure.

at Smith's Cove,

near the shoreline of Lot 5

on the western side
of the island...

We're looking for a continuation

- of this stone feature?
-Mm-hmm.

Yes. I would like to see
how it follows that way,

which I think
is what Laird's plan was.

...Jack Begley and
archaeologist Moya MacDonald

are proceeding with
a methodical investigation

of a large,
rounded stone foundation.

A foundation where the team

has uncovered compelling clues,

such as mortar-like soil,
matching other samples

that were collected
from nearly 100 feet deep

in the Money Pit area,

as well as a cut silver coin

and iron tools
that have been dated

to the 17th century.

We're not quite
down too far just yet,

so we could find something else.

Yeah?

These discoveries and more

have made the team speculate
that this feature

served as a staging ground

for whomever constructed
the Money Pit.

Now, they hope to find proof
that will reveal

just who the creators of
both features may have been.

This looks kind of cool.

Nice.

- Good find?
- Yeah, it looks like a...

like a bottle rim.

It's probably a wine bottle.

Oh, nice.

Yeah, we found
a large bottle base

- just over by those two trees.
- Okay.

I haven't seen a top yet

as long as I've been
working on Lot 5,

so this is really interesting.

Great.

Great start to the day.

I think what happened on Lot 5

not only fits right into
a deposit in the Money Pit,

but I think
they covered over the area,

trying to hide it.

We're off to a good start.

I think so.

Oh. This is cool.

Just popped out of nowhere.

Hey, Jack, do you want
to come see this?

the large stone foundation

near the shoreline
of Lot 5 on Oak Island...

It looks like
a piece of strapping.

...archaeologist
Moya MacDonald has just made

a potentially
important discovery.

It's interesting
'cause it's bent at

kind of a 90-degree angle.

Now, "strapping,"

you mean like metal strapping

to keep a box

or a barrel together?

Yeah, it looks like it.

It's straight, so I'm not
too keen on saying

- it's from a barrel, but...
- So, maybe

- a small box or a chest.
- Maybe a small box.

Well, Laird had suggested

that there could be
some type of a cache

related to the structures
somewhere around here.

And maybe, that's a bit of

strapping to a box
as part of the cache.

'Cause we did find some coins.

Actually, a fair
amount of coins,

just right from this area.

- Yeah, that's true.
- Who knows what

they were keeping
in a box or a chest?

Is it possible that this
piece of metal strapping

may have been part of a chest
that contained valuables?

If so, might the chest
have been moved

somewhere for safe keeping,

such as in the Money Pit?

Or might it be
buried even deeper

within this
mysterious foundation?

It will help define
the story a little better.

Yeah, figure out
who was actually here.

Yeah, we still don't know,
and their purpose

is unknown, too. I just think

it's treasure-related.

We had some
really good finds on Lot 5.

Buttons and coins
and the lead piece,

beads and ammunition.

We don't find
the type of artifacts

in such concentration

anywhere else on the island.

And so, it makes you wonder

could there be a hidden treasure

just right around here?

-Hey, Helen.
-Hi.

-Oh, hi, Helen.
- Hi, guys. How's it going?

-Good.
-Well, we found

some interesting things
I wanted to show you.

So, first cool thing

we found so far has been

this bottle rim.

Yeah. So, this, the, um,

the paler olive glass,
should we say, um,

indicative of
the French wine bottles.

I think we had
a couple of pieces here,

like over in that unit,
and we've definitely had some

up at the other feature as well.

It shows that they were

in use at the same time,

since we're finding the same
artifacts in both features.

We have found artifacts
from England

and France, roughly from

the 1600s to the early 1800s.

That's incredibly intriguing

because I believe there was
an expansive effort over time

by groups, entities, to hide

something of great value.

And on Lot 5,

I think there's a richness now,

a much more complex
story developing.

So, we had that one,

and then we found

a piece of strapping

that we thought was interesting
'cause it's kind of

bent in a 90-degree angle there.

That may just be damage
from being in the ground.

It's hard to say.

So, I think if we took this back

and put it in the CT scanner,
we might be able to see

if this is cracked, which means

- it would have been damaged
-Mm-hmm.

or if it was intentionally

- bent over.
-'Cause if that is

an intentional 90-degree turn,

then it would
be on, like, a chest

- or some sort of a box.
-Something like that.

Yeah, you know, the strapping
around the edge of it. Yeah.

If that is some type of a cache,

this is the area

where we found a lot of coins.

It's possible.

I have known, like,
coins been found before,

like, you can find
a little stack of them.

Like, people will bury them
or sometimes put them

under floorboards, so they're
here around the outside.

What were they doing here?

And why did they choose Lot 5,

and the deeper
Money Pit soils, too?

And why dig
such a large foundation?

-Then bury it?
-Mm-hmm.

It's why I think
there's another story

that we haven't uncovered here,

that relates
to the treasure hunt,

and maybe
a hidden chapter of it.

Yeah, yeah.

Okay. So, you guys are just

continuing down in this
gravelly layer right now.

Take this down as much as we can

and then try and define
this line of rocks.

- Mm-hmm.
-Okay.

Keep going, find more stuff.

- That's all we can do.
-Yeah.

See you, Helen.

Hey, Billy.
Anything new down there?

There's still something
going on in this side.

...Craig Tester
and other members of the team

dig deeper near
the beach at Smith's Cove

in search of the vertical shaft

and the legendary flood tunnel

that feeds seawater
into the original Money Pit.

You've got the three rocks

and then, like,
there's a rock here.

Oh, yeah. Yeah.

We got quite a bit of water
coming out underneath.

Small, quite a few cobbles.

But, I mean, you don't
normally see one, two, three,

four rocks, and then I pulled
a couple out from there.

There's something
going on there.

Yeah.

- Keep digging.
- Yeah.

is it part of
the vertical shaft?

I don't know. I hope so.

You got to be patient,
you got to follow the process.

Um, you know, dig deeper.

Those rocks are interesting.

I'm not sure
what they mean, but...

Me, neither.
You notice, a bunch more

cobbles, this size,

just rolled out
from underneath them.

That's pretty odd there,
I think.

Yep.

You know, everything
still seems to be

coming right under
the center line

that Steve put in there

for the potential flood tunnel.

You know, the Restall indicates

that original people
put that 18-inch vertical shaft

full with rocks in place.

If it was 18 inches in diameter,

with rocks, I mean,
I wonder if, down deeper,

it could be larger,

- like we're seeing there.
- Right,

- lined with boulders.
- Yep.

It could be it, it could have
been a vertical shaft.

The stacked rocks
allow the water

to transfer underneath it.

It could be the type of rock
formation we're going through.

Yeah.

that the large stones

the team has just unearthed

are part of the man-made feature

known as the vertical shaft?

If so, that could mean
that they are on the verge

of locating and cutting off
the booby trap

that has stopped searchers from
recovering the fabled treasure

for more than two centuries.

I think somebody
stacked those in there.

Yeah.

That's the most
interesting thing

we saw so far, right there.

-Gentlemen.
-Hey, guys.

Hey.

We're digging a hole.

- It's quite a hole.
-After being alerted

by Craig Tester
that possible evidence

of a man-made flood tunnel
has been uncovered

over 30 feet below the beach
at Smith's Cove,

Rick Lagina
and Scott Barlow arrive

to inspect the potentially
historic discovery.

So, what we're finding is,
along this wall,

there's some rocks
that appear to be

probably below where, uh,

the boards were that we found.

Each rock was touching,
you know,

like-- it was, like, they were
stacked in, and underneath,

was quite a few
fist-sized rocks in there.

What do you make of it, Craig?

Uh, I don't know.

It was definitely odd,
'cause you look around

anywhere else and you don't
see rocks like that.

So, to me, it was man-made.

So, what-- where
is the elevation

- where the stones were?
-Right-right
where the water

is coming in the trench there.

Oh, there, yeah.

Everything seems to be
lining up with that center line

that Steve put in
for the potential flood tunnel.

Yep.

Yeah. Nobody's dug more dirt

on the south shore
than you have.

What are those rocks
doing down there?

Those rocks definitely were

manipulated
to be there like that

- for-- without...
-All in a row.

Yeah, I'm saying 110%.

I'll go more than 100.

Wow.

There's a whole bunch
of clues here,

-Yeah.
- we just got
to put it together.

There's a linearity to them,
which Mother Nature doesn't do.

If you confirm the location
of the flood tunnel

and project that line,

somewhere on that line should be
the original Money Pit.

So, it's exciting.

I firmly believe Restalls
were onto something

- with-with their work.
- I agree.

So, that's why it's important,

I think, at this point,
not to stop.

If there's something here,

this is where
we're gonna find it.

If it really is a flood tunnel,

means there is a Money Pit.

Think of the laborious effort,

but more-- even important
than the laborious effort

- is the plan.
- Mm-hmm.

A plan. A well engineered,
well thought-out,

very cogent application
of money, time,

material and effort

to do one thing
and one thing only, maybe.

And that's why
this story has endured

and that's why it continues
to be so fascinating.

Mm-hmm.

There's only one thing to do.
Keep digging.

-Okay.
- Yep.

of the believed flood tunnel
at Smith's Cove...

...later that afternoon...

Welcome to the war room,
everybody.

Jan, welcome back.

I believe you have
some results in the--

- from your work
in the Money Pit.
- Yes.

...Rick, Craig
and other members of the team

gather in the war room

with ground-penetrating radar
expert Jan Francke

as Marty Lagina joins them
via video conference.

Let's take a look
at this data.

that he collected from
a borehole known as HN-16,

Jan has created a visual model
of any anomalies,

such as potential voids,
tunnels or objects

in the so-called Golden Egg,

where high-trace evidence
of precious metals

were previously detected

between 80 and 120 feet
underground.

So, what we're looking at here
is the radar profile.

It seems that
our last good reflection

is at about 12 feet.

Okay? So, we'll call that
the-the approximate distance

that we can get away
from the hole

- and still see something.
-How far are we

- from the Garden Shaft?
- Probably 18 feet.

Right, so, when we're looking

at borehole radar results,
we're looking for anything

that really pops out.

As we scroll
further down the hole,

- we get this.
-Mm-hmm.

And that target,
absolutely, is characteristic

of a discrete void space.

- Wow.
-How far down
are you here?

That's around 127 feet
from the surface.

Meaning that some kind
of open cavern,

structure or container

appears to lie buried 127 feet

underground in the Golden Egg?

If so, might it be the source
of the precious metals

that have been detected
through groundwater testing

at that same approximate depth?

If you look on the screen,

you see this
upside-down horseshoe.

And that tells us
it's a discrete target,

- an individual target.
- Oh.

This is something
that is sitting

about three or four feet
from the borehole.

Now, we have nothing
to compare it against, right?

But it seems,
just from experience,

that we do see some ringing,
or reverberations,

which suggests that
it's probably full of water.

So, it could be a tunnel
or even a flood tunnel?

Probably not.

It's not salt water

because it's such
a strong signal.

If that was salt water,
we would see a shadow zone.

- Okay.
- Yeah. Right? And we don't.

We see really good
penetration through that,

- so that tells me
it's probably fresh water.
-Okay.

-Yep.
-And it's about

three to four feet away
from that hole, yes?

Uh, well, it's a little hard
to tell exactly where it starts,

but let's say
three feet on average.

And it's not a layer of geology;
that would look very different.

This is a target,
so it-it's a discrete object.

So, this could be
the fabled offset chamber.

Really?

Sure.

This could be
the fabled offset chamber.

Uh, and nothing would make me
happier than that,

even if you dig it up
before I get there.

Hear, hear.

It is an exciting
moment in the war room

for Rick, Marty
and the Oak Island team

as ground-penetrating radar
expert Dr. Jan Francke

has just revealed that
an open void has been detected

at a depth of 127 feet

in the so-called Golden Egg,

the same region where
recent groundwater tests

have identified high traces of
gold, silver and other metals.

of any searchers who were
messing around at that depth?

No. Nothing in that area.

So, it's pretty exciting.
I mean, I don't know.

Jan, I hope you're right.
I don't know.

How right are you?

I can only show you what's, uh,
it says on the screen here.

There is a discrete target here.

I think we just widen the hole
and send Jack down there.

Yeah! Let's do it.

MARTY [voice-over]:
All of the sudden, we have

a new piece of data,

a possible void.

It might mean
that we're close to evidence

of the original deposit.

So, am I excited
this could be the year? Yes.

Well, what are we
gonna do then, guys?

Are we gonna drill
another one right near there?

- What are we gonna do?
- First, I'll make sure

that Dr. Spooner has finished

collecting his new groundwater
samples in the area.

Yes, definitely.

Well, I think
this is great results.

I mean, the tool's
definitely working.

- We're finding a void.
-Absolutely. Hey, look,

we started this year
and I was super hopeful

that the water analysis
would really narrow down

where the metals
are coming from.

You know, we got the Golden Egg,
which is very cool.

And now, if this is correct,

it's about as narrowed down
as it can get.

Within a three-foot radius?

We've never had
anything like that.

Look, the man has done
this work, literally,

across the globe
and h-has had success.

This area in particular
is underexplored,

or underinvestigated at depth.

The water sampling program has
indicated metals on the area.

So, there's a lot
of reasons to be hopeful.

Look, uh, how--
If anybody around the table

is disappointed
in a legitimate target,

uh, then,
we all need to go home,

right?

And maybe this discovery
will allow us to go home.

So, you know,
let's develop a strategy

by which we can exploit
this possible target.

It's all good news. We've just
got to stay the course.

So, Jan, again,
we want to say thank you.

- And, uh...
- Thanks for having me out.

Get out there
and start drilling.

- Can do.
- Let's do it. All right.

- See you, Marty.
- See you, Marty.

new potential avenues
have been opened

that may lead Rick, Marty,
Craig and their team

to the ultimate discovery.

After identifying a massive
source of possible treasure

more than 100 feet deep
in the Money Pit area

and placing an X on the spot

where it has remained hidden
for more than two centuries,

is it now just a matter of time

before Oak Island's secrets
are finally revealed?

Or might a mysterious

and deadly line of defense

that is much more powerful
than a man-made flood tunnel

stand in their way?

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