All language subtitles for The Curse of Oak Island - S12E15 - Channeling the Solution WEBDL-1080p.mkv

Tonight on
The Curse of Oak Island...

I got a signal!
Oh, look at that.

-Oh, yeah.
- Isn't that amazing?

This I would actually date
mid-1700s to late 1700s.

- That could be pre-searcher?
- This could be pre-searcher.

It demonstrates wealth,
nobility.

-Wow.
-Some prominent person was

on Oak Island pre-Money Pit.

- Yeah.
-That's great.

-Where's the gold?
-Whoa!

We could've just pierced
the tunnel or chamber.

It could be a treasure vault.

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.

It's settling down again.

That's not good.

- That side again.
-This is really bad.

...a chilling crisis
has developed

for brothers Rick

and Marty Lagina and their team.

It's just f-falling in.
I got this side coming up.

I think we need to redo this pad
and compact it around it.

All right.
Here's what I think happened.

This casing was at 160 feet.
Plus or minus.

Simultaneously,

all kinds of collapse occurred
around the top of this casing.

- That's right.
- ...in a rather scary fashion.

after representatives
from ROC Equipment and SB Canada

excavated a seven-foot diameter
steel shaft

known as True Believer One
down to a depth

of 160 feet...

-That ain't good.
- Hey, stop. It's caving.

suddenly began to cave in.

We're caving.

to halt the excavation

and backfill tons of soil
and gravel around the shaft

in the hopes of preventing
a catastrophic collapse.

Now I'm gonna stray
into what I think it means.

For something to fall,

it has to fall
into a void of some sort.

It can't fall into solid rock.
It can't fall into clay.

One more thing, though.

- Go ahead. Yes.
- Remember what Vanessa said.

Remember she said they were
keeping an eye on the can

and they didn't think
things were coming in?

Meaning, it wasn't
creating its own void.

No. We probably removed

whatever is the sort of
natural seal there and I think

all that material collapsed
all the way down the hole.

- Yeah.
-If there was still
a tunnel or chamber down there,

we could've just
pierced the roof of it.

- Well, that's a good point.
- Possibly.

- Yeah.
- I guess it could be
the treasure vault.

- Yeah.
- Uh, we could have
collapsed into that, I suppose.

as the TB-1 shaft approached
a depth of 160 feet,

the team was anxiously hoping

that it would encounter
the fabled Chappell Vault:

a seven-foot-tall,
concrete-encased wooden chest

that treasure hunters
Frederick Blair

and William Chappell
reportedly drilled into

at a depth
of 153 feet back in 1897.

Curiously, this is the same area

where recent ground water
testing has revealed

high-trace evidence of gold,
silver and other metals.

However, this is also
where previous searchers have

constructed tunnels and shafts
during the past two centuries,

which have left various voids

and decayed structures
deep underground.

I think it's gonna be
either original works

or some undocumented
searcher shaft or tunnel.

Or treasure.

that ROC and SB Canada can
stabilize the area

and keep digging

to determine
whether the team has simply

penetrated an abandoned
searcher structure

or a vault
that contains the treasure

people have been trying
to unearth since 1795.

a variety of different things.

It might suggest a chamber,
a void or a tunnel.

Sure, that's exciting
and interesting.

But paramount importance,
again, priority number one is

to keep everyone safe
and address the situation

and hopefully continue
to advance the can.

- Here comes Vanessa.
- What happened?

- Where can I get water?
-We can get you water.

Okay.

Yeah. We want
to introduce water,

get some more hydrostatic can
pressure in there,

um, 'cause
it's getting tight on us.

So...

How much water?
What do you need?

I would like to fill up
my can all the way,

so I need to fill 50 feet.

- Seven-foot diameter.
- We'll get you water.

Okay.

around and beneath
the TB-1 shaft,

the team will fill it with
thousands of gallons of water.

This will help stabilize
the shaft and voids beneath it,

allowing the 18-and-a-half-ton
hammer grab to remove

more spoils and hopefully
valuables from deep below.

It could be a vault,
meaning potentially treasure.

That could be the mystery.
That could be where it is.

Some pretty good reasons
to keep trying.

So we're gonna
pull out the decks.

It's gonna take us
a little time,

level everything,
add some water to the can

- and then re-go at it.
- Okay.
- Okay.

- Okay?
-Cool.

Well, what did we know
at the beginning of the year?

- We'd have surprises.
-Yeah.

- Well, we just got one.
-Yeah.

- And a hell of a lot of work.
-Yes. There's all kinds

of potential difficulties
to work through.

Everyone that came before us
had problems.

I don't know.
I'm-I'm not super optimistic

that we won't have any further
issues, but maybe I'm wrong.

I actually think
we will finish this hole.

-Yeah.
- I mean, it's a best guess
at this point, but...

-We definitely
don't want to give up.
- No.

We've got a lot
to look forward to.

- To look down to.
-Yeah.

-We can figure it out.
-Oh, yeah.

a fabled treasure vault continue
in the Money Pit area...

-Morning.
-Hey, guys. How are you?

Hanging in there.
Ready for some big revelations.

Well, this could be
the spot to find some.

Craig Tester,

fellow Oak Island landowner
Tom Nolan

and other members of the team

in the northern region
of the swamp.

Rick's been wanting to dig this,
I don't know, forever.

15 years or so.

where they are searching
for caches of valuables

that may lie hidden
outside of the Money Pit area.

The thing about this place is,
it's all about your dad, to me.

- Yep.
-You know, he believed

that there was
something here to find.

So let's get out in the machine,
let's position it,

- and let's get to it.
- Yep. Let's dig.

I want to get dirty.

legendary treasure hunter Fred Nolan

drained the swamp
and was shocked to discover

pieces of large sailing vessels.

He also found 16th-century
wooden survey stakes.

Tools that Fred believed

had been used to
create the brackish bog

in order to hide
numerous caches of valuables.

Seems to be
quite a few more rocks

at least right in through here.

after uncovering
a cobblestone pathway,

and a number
of additional survey stakes

in the northern region
of the swamp,

the team discovered

an empty vault-like structure
made of brick and slate.

This is gonna have
some real answers.

I really believe that.

Now, along
with Fred's son Tom,

Rick, Marty
and Craig are searching

several yards to the north.

It is their hope
that they will uncover

similar hidden structures

that will prove
Fred's theory to be true.

we can only assume
something was hidden here.

And hopefully,

whatever was once here
is still here.

- I got a signal!
- Want to shut them down, Tom?

Let me see
if it's close to the surface.

I'll try to pinpoint
it first, Marty.

All right. Okay. Fine.

See if I can save you
some digging.

Yeah.

It's there.

It went right into dry stuff.
That's not it, is it?

That was brick.

You see that bit of brick
in the hole there?

Right there?

Buried in the northern region
of the swamp?

Could the team have
discovered evidence

that an important structure
or vault is hidden nearby?

Yeah. I'll put it in my pocket.

It just goes to show we're not
missing anything there.

I'd say exactly that.

Yep.

That's the nature
of the swamp on Oak Island.

But by digging in this new area,
we're hoping to find clues

to what happened here.

We have to follow the clues.

Hey!

What's that?

I'm coming in, Alan.

Ooh! Look at that.

This is impressive.

Oh, look at that!

A really nice-looking
sharpened stake.

Isn't that amazing?

It just looks like the day
it went in the ground.

Yeah.
That's hand-hewn, wasn't it?

Yeah.

This is impressive.

of the Oak Island swamp...

Here's another one right here.

and members of the team
have just discovered

two more hand-cut
wooden survey stakes.

What is that?

Two stakes.

could they be clues
to validate Fred Nolan's theory

that hidden valuables might
also be found in this area?

Are these the first ones that
have been found on this side?

No.

Years ago, we found two or three
closer to the, to the road.

But this is the first ones

I know of
that were found this deep

into the swamp on this side.

I think, uh, Steve should
come out and GPS this

because then he can see

if there's continuity here
or something different.

-Yeah.
-Okay.

I'm pretty sure he's coming out
right now.

is to follow the line
of survey stakes.

But the hope is
that as we follow these clues,

they will lead to some
greater understanding

of what might be here
in the bog.

- Hey, Steve.
-Hey, guys.

What I'm gonna do is
I'm gonna hop down

and I'll grab the areas
of the two exact locations

- of those stakes.
- Okay.

Steve, you want
to hop down and pin this?

Sure do.

Here you go, mate.
Check out this wood.

Let's see that top one.

I don't know why
two are together. That's odd.

That's not the pattern
we've seen.

So this line of survey stakes
projects to an area

where we have found
all of those wooden stakes.

- Nice.
-Yep.

I mean, that's
perfectly on line, almost,

- so I would keep following them.
- Yep.

that the stakes line up
with previous stakes

that have been found in the bog.

This took some time and some
effort to lay out this line.

Maybe this line has
another purpose

and relates to another,
as of yet,

unknown discovery.

So, what I'll do is to continue

to confirm the line
as far as I can walk.

Okay. Thanks, Steve.

Thanks, Steve.

- Good. Let's dig.
-Look at that.

There's a bunch of cobble here.

I don't know
if you can see it or not.

It's just right here
and it's going that way.

Yeah.

Found near
the hand-hewn survey stakes?

Is it possible
that the team has, indeed,

uncovered another section
of the cobblestone pathway?

If so, could it lead the team
to a vault that still contains

something of incredible value?

It's almost
like they're stacked. Right?

- That's a Spooner question.
-Yep.

That's a Spooner question.

There certainly appears to be

a structure in the north end
of the bog, so I want

Dr. Spooner to come
and render an opinion about

whether or not it is
a man-made structure.

It looks stacked,
but I don't know.

We have to follow this.
There's no question about it.

Yeah.

I want to keep digging.

Okay.

-Let's keep digging.
-Yep.

as the team
from ROC Equipment works

to stabilize the ground

around the TB-1 caisson...

We have in front of us
several things that,

hopefully, will make us
true believers,

because they came out of TB-1,
True Believer One.

Craig Tester
and other members of the team

join archaeologist Laird Niven

and archaeometallurgist
Emma Culligan

in the Oak Island Lab.

And we have
four of them right here.

They are eager
to hear Laird and Emma's

scientific analysis

of several nails
that were recently unearthed

from more than 100 feet deep
in the TB-1 shaft.

I'll turn it over to Emma.

Based on the composition
and the X-ray characteristics,

the first three nails

I would put comfortably
within early to mid-1800s.

And there is a potential
that it could be late 1700s.

Okay.

The last nail
I would actually date older,

and based on its X-ray behavior,

possibly within
mid-1700s to late 1700s.

If you had to opine,
these three are searcher

and that one might be
pre-searcher?

So I'd say this has
the most possibility

of being pre-searcher.

- Yeah.
- Yeah.

have constructed shafts
over the past two centuries

in the area where the team is
currently excavating TB-1,

it is not surprising
that some artifacts will date

to after the discovery
of the Money Pit.

However, could the team
have also found a nail

that was used by whomever buried
the fabled Chappell Vault?

Compositionally,
they're all fairly similar.

to potentially recovering it?

Thanks, Emma.

You know, we're getting
a lot of information.

And we brought this stuff up,
so what's sitting down below

in the loose clay area
that could sink on down?

- Yeah.
- Well, let's get back at it

and try to find
something even better.

-Thank you.
-Thank you.

- Thank you all.
-Good luck!

-Hi, Marty.
-How deep are we?

They're making progress,
slow but steady.

after being informed
that the process

to stabilize the TB-1 caisson

appears to have been successful
and the dig has now resumed.

We got, I'd say,

48 or 49 yards of crushed stone
down in that hole.

Vanessa is coming in.

-Where's the gold?
- Hey, gentlemen.

So, how are we doing?

Well, we're doing better.
We're doing better.

So the water is
definitely helping.

The water did its trick.

Yeah. The water is doing
its thing.

We're dropping the tape down
past my casing now.

So, um, right now my dig,

depth of hole is
at 164 and six inches.

- No plug.
- No plug.

refers to the earth or spoils

contained inside
of the steel caissons.

However,
since Vanessa is reporting

that there is no plug
within TB-1,

that means it and any potential
man-made objects

have fallen to somewhere below.

He is dropping it down

and he's hitting something
very hard all the way around.

We think it's rock.

You sure there's
not a cave or a cavity?

Pretty sure there is.

This must be
the solution channel.

Yeah. If we're on a ledge,
then we got a hole.

The solution cavity
or solution channel,

we believe it's natural,

and it underlies
a good bit of this.

So you're on the edge.

That's why
your plug is going down.

So we could have collapsed
into that I suppose.

in the Money Pit area,

the team has
repeatedly encountered

a large, natural cavity
that was created

by flowing groundwater
in the bedrock,

known as the "solution channel"

between 160
and 180 feet underground.

If Marty and Terry are
correct that TB-1 has

now entered
the solution channel,

could that explain
what caused the earth

to collapse around the shaft?

And if so,

could that also mean

that the fabled Chappell Vault
has fallen into it?

to the bottom
of that solution channel.

That could be the answer.
That could be where

this treasure resides
at this point.

So we need to get down
in that solution channel.

As we break through
this shelf in the bedrock,

we hope to get into the area

where the treasure
might have fallen to

in the relatively soft material.

Yes. And we're about ready
to stack another can

and we're gonna add some more
water and, uh, keep going down.

Okay.

All right. Thank you, Vanessa.

I'll keep my fingers crossed.

continues in the Money Pit area...

It's going down pretty good.

There you go!

where there's topsoil there.

Okay.

Tom Nolan,

and other members of the team
are continuing

to investigate an area

where just one day ago
they found

large survey stakes...

Yeah, that's great.

a layer of possibly
stacked cobblestones.

Come on, artifacts.

I know you're here.

-Oh! Whoa!
-Whoa, whoa!

Whoa!

Now I'm seeing
this cobble's all through here.

Is it me or does this
look like the stone path?

Yeah. It certainly does.

There's a very clear line.

You can see the edge
of the rocks and before

- you're into that
sea horizon right here.
-Yeah.

Some looked like beach stone,

which are out of place
in the swamp.

All put tightly together,

very similar to the stone path
on the south side of the bog.

And it seemed to have
some sort of shape.

We've got a defined path.

Yeah, it's-it's very linear.

put into this area
for some reason.

It begins to make you wonder,

is it searcher
or is it depositor?

I'm gonna call
Dr. Spooner and Laird

and get them to come
and have a look at this.

Yeah, I think we should

because, I mean, they've
looked at the other ones,

so we'll see
what they think of it.

Yeah.

They really should have a look.

-Yeah.
-Yeah.

So, hopefully,
we're through the rock soon.

All right. Well,
I'll go back to the station.

Looks like you've got it
handled here.

the seven-foot-diameter
steel shaft known as TB-1

is approaching a depth
of nearly 170 feet

and has reached
the so-called solution channel:

a massive natural void
in the bedrock

where the team hopes
to encounter

the fabled Chappell Vault.

He's gonna drag it around.

Yeah, but not before
I grab this.

Oh, right.

I got to see if this floats.

Yeah. That's
the first piece of wood

I've seen
in the last few scoops.

- Yeah, this could be old.
- Yep, could be.

All right. Good eye.

if you retrieve wood from depth
and it sank, it was older wood.

If it floats, it's modern.

That sinks.

recovered a piece of wood

nearly 170 feet deep
that might predate

the discovery of the Money Pit,

could it be a clue

that the treasure vault is now
also within their reach?

A piece of wood came out
of that last scoop.

- Just tested it--
- Just what we were hoping for.

Just tested it
and it doesn't float.

It does not?

It does not float.

That's what we're looking for.

Yeah. It could be
what we're looking for.

Look at the growth rings.

- That's also real good.
-That-that would be

near the center of the tree,
I would think.

of about 170 feet
and we find a piece of wood.

And I feel
that this piece of wood is

deep enough
it could only be depositor.

If this was depositor,
we could've found

what the Chappell-era
searchers believed to be

the treasure vault.

Hey, Terry, I've got
some new numbers for you.

Great. Thank you.

Depth of hole is
168 and six inches.

And our casing
just broke through 171.

171 at the teeth.

So this came out
of the last scoop.

That came from 168.

What does this wood mean to you?

If we found
a bunch of it, remember,

nobody was down to 168.

- Nobody.
- Okay.

So if we start finding
a bunch of this,

we'd start
to get pretty excited.

Awesome.

All right. We'll keep digging.

of TB-1 continues
in the Money Pit area...

...later that afternoon...

-Gentlemen.
-Hi, guys.

Marty Lagina,

Craig Tester and other members

of the Oak Island team meet

via video conference
with renowned

gemologist Jeffrey Bilgore

and John W. Ford Sr.,

the CEO of the American Gem
Trade Association.

Welcome to the war room.

Well, thank you.

- Oh!
- Oh... no way.

Wow!

a glass gemstone

that the team found
two weeks ago

near the mysterious
rounded foundation on Lot 5.

A foundation
where the team has

not only uncovered

man-made mortar
that matches soils

from more than 100 feet deep
in the Money Pit area

but where they have found

a number of believed
mid-18th century artifacts

including this rare glass gemstone.

Have you seen
other stones like this?

Yeah, I've seen
other stones like this.

But what is
significant is the fact

that it was found
on an island in Nova Scotia.

So it's very interesting

because the origin
of the crystal is

European in nature.

It could be
from England, France,

Spain, Portugal or Italy.

The research shows
it could have been made

somewhere between 1730 and 1775.

Okay.

That's what Laird
and Emma also thought.

What would be more traditional
to use for something like this?

It could've been
from an object of adornment,

sewn onto a heavy fabric.

An ornamental type of a coat.

and the purity
of the material is unusual.

This is the size of, you know,

an eight to ten-karat sapphire,
eight-karat diamond.

But it's definitely a simulant
to look like a diamond.

To look like you have
something of great value.

Okay.

So somebody really important
was on Lot 5.

Somebody who mattered, yeah.

We've always thought

that even if the Money Pit is
simpler than we think,

without any complex engineering,

it still would take
a team of men to do that.

We always wondered
where was the encampment?

Where were these people
while they were doing this work?

Well, maybe Lot 5 is it.

This little gem does indicate

that somebody of means,
wealth, influence,

was almost certainly on Lot 5
and on the island.

which is resistant
to tarnishing,

is quite significant
because tin would be

for more of a noble person.

So this is definitely not

something worn
by the average person

in the 1700s.

This is more evidence that some

very prominent person was
on Oak Island pre-Money Pit.

- Yeah.
-Is there something else

that we haven't found yet

that this person of importance
was watching over?

Who was it?

The fact
that its singular large size

and the way it's,
uh, fastened and cut,

it demonstrates
wealth, nobility,

part of a military medal,
possibly.

That's great.

gemology experts

John W. Ford Sr.

and Jeffrey Bilgore have

just given their assessment

that the glass jewel recovered

near the round feature on Lot 5

not only dates back
to several decades

before the discovery
of the Money Pit

but likely belonged to someone

of European nobility.

which is resistant
to tarnishing,

it might be something
that would be

on a naval officer, um, because
of, uh, being at sea and such.

Thinking about the dates
and some of the theories,

Duc d'Anville was supposedly
in the area in 1746,

so that fits in
with the date of the jewel.

It is quite possible. Yeah.

There you go.

Oak Island historian
Doug Crowell discovered

part of an 18th-century
ship's log

detailing a vast treasure burial

in the vicinity of Oak Island.

The log was reportedly connected

to the crew
of the Duc d'Anville--

a French nobleman and admiral

who led an unsuccessful
attempt to reclaim

Nova Scotia from England
in September of 1746.

It's always exciting
to have little artifacts

that could potentially
mean so much.

Mm-hmm.

that the team has discovered
a critical clue

of just who may have created
the round feature on Lot 5?

And perhaps who left
a mid-18th century nail

deep in the Money Pit area?

And lastly, might it
answer the burning question

of just who buried
the fabled Chappell Vault?

Those are intriguing thoughts.

just one more artifact
that's saying

someone or a group of people
of importance were

on Lot 5 and we got
to figure out why.

And it also means that there
could be a lot more out there

and it's not gonna find itself,

so we're gonna
get back in the field.

- Thank you very much.
- It's a pleasure.

We're happy to be involved.

-Thanks, guys.
-See you later.

-Thank you.
-Thanks, guys.

...as the excavation
of TB-1 proceeds

in the Money Pit area...

There's more rock coming out.

We're mowing through.

-Hey, guys.
-Hey, guys. How are you?

-How's it going?
-Good.

Welcome to another
big question mark.

...geoscientist
Dr. Ian Spooner joins

other members of the team
in the northern region

of the swamp.

What do you think?

There's a pretty clear,
defined side over there

and the same over here.

that Dr. Spooner will be
able to verify

that the cobblestone feature
they uncovered one day ago is

part of a man-made pathway.

There was a couple of,
uh, sharpened stakes

found down there,
right at the side of it.

-How big?
- About this big.

The thing that always gets me
interested in these features,

having looked at them
for the last three years,

is that these big stones are

all of a size
that could be handled by people.

This was their path.

It's kind of almost to the edge.

Again, we only have
a small section of it uncovered.

On the south side,
with the cobble path,

it was cleared archaeologically

so you could see
the structure clearly.

Well, let's cut a section then.

Why not?

I'm fine with that.

I'm thinking
of this as a really

targeted way to apply
our archaeological resources

to the challenge of the swamp.

And we can, hopefully,

apply the results that we get

to any of these other features
in the swamp.

All right. With that,

I'm actually gonna take
the information I have

back to the research center

and see where it points to.

-Let us know
what you come up with.
- We will.

All right. Thanks, guys.

See you later.

real belief
in the work in the swamp

that we have done to date.

to the Money Pit area, Rick,

Marty, Craig

and other members
of the team are meeting

with surveyor Steve Guptill
in the war room.

I think the swamp is
integral to understanding

this incredibly complex mystery

and it becomes
more complex by the day.

the new data
regarding the wooden stakes

and various sections
of the cobblestone pathway

that have been
recently found in the swamp,

Steve has created
a digital survey

that also includes
other man-made features

the team has uncovered
in the brackish bog

during the past several years.

Steve, I think
it's up to you to explain

what we found
and what it might mean.

Let's start
with the survey lines.

I believe it was you
who found on Fred's plans

a line of survey stakes.

This is probably 2018.

We dug this line here
and we found three stakes.

-Yeah.
That's right, yeah.
-I remember.

-That's right.
-Sure.

Then we go to yesterday.

I tagged three
of these survey stakes.

As you can see, almost perfectly
on that calculated line,

a straight line north and south.

These things were
put down for a reason.

It is consistent
with a surveying use.

100%.

Well, if they are
reference points for something,

it's definitely
some construction site.

So that segues well
into the cobble path.

Here's the cobble
we found yesterday.

There's the three stakes
that we've surveyed

with that land
on the survey line.

Right.

So project that back,

it looks like it relates
to the cobble path.

That comes off
the stone road and heads west.

The pathway seems
to be connected

to everything that we find.

If we continue westward
and northwestward,

we come into the Eye,

we come into this wooden
platform we found this year.

Okay.

So another area
that this projects to is

the cobble found
next to the vault.

The cut slate with the bricks.

Oh, really?

So at this stage,

it seems that all these features

are loosely connected in time

and that time period is, uh,

from the late 1600s
to the mid-1700s,

and that's well before
the searchers

and in my opinion,

it wasn't farmers,
it wasn't fishermen.

Based upon those dates,

it's similar to some
of the dates we're getting

- from the Lot 5 feature.
- Yeah. Yeah.

I'm thinking
that there's a connection

to the Money Pit,
to the swamp and Lot 5.

And that they were doing work
around the whole island.

surveyor Steve Guptill has
just presented the team

with data leading them
to believe

that the cobblestone pathway,

which the team has unearthed

throughout the swamp
could be connected,

not only to the various
man-made features

they've discovered such as
the empty vault-like structure

but might also have been created

to serve as a direct link
between Lot 5 and the Money Pit.

I think this is good
because when we first found

this cobble in our northern dig,

I suspected, okay,
maybe this is the connection

between the,
the cobble path and Lot 5.

- Yeah.
-So we have

a pretty targeted area here
where we can keep digging

and try to establish
that connection.

If you were to project the line
further to the northwest

it could go up to Lot 5.

Cool.

prove the team's
previous suspicion

that the stone foundation
on Lot 5 served

as a staging ground
for an operation to hide

one or more treasure vaults
in the Money Pit?

And perhaps also in the swamp?

I mean, at-at this point,
I think we have

so many 1700 dates that...

if, whatever was going on

on Lot 5 was going on
in the swamp

was whatever was going on
in the Money Pit.

I mean, we just find
the dates everywhere.

1600s, 1700s seem to be
the most consistent date

we find island-wide.

And so whatever was going on
on the island,

I think we can start
to piece it together

that a major part
of the construction

on Oak Island was 1680 to 1750.

- Yeah.
- Yeah.

It is an enormous undertaking

if these cobble features are
connected in time.

Obviously, there was an intent,
there was a purpose,

and possibly an association

with the Duc d'Anville
expedition,

but there's still a lot
of puzzle to put together here.

So the work needs to continue.

There's now this belief,

and I hope
it is a well and truly

an established belief
at this point,

that it is literally
an island-wide mystery.

And that's how we need

to look at this
and we have to do

activities that are insular
from each other,

meaning, the activities
in the Money Pit,

the activities on Lot 5,

the activities
on the eastern drumlin,

the activities in the bog,

at some point they will meld,
they will come together.

Nice report, Steve. Well done.

but it's going somewhere.

So I don't like now that it's
going back under the crane.

Right?

This collapse is just
not stopping.

rushed back
to the Money Pit area

after being alerted
that the earth surrounding

the TB-1 shaft has once again

started to cave in.

Grab another scoop of dirt.

We need to try to get more
in that back hole,

it's, like, three feet low
on the back side.

The solution channel,

which underlies
a good portion of this,

which is a natural
cave-like structure,

- is more liquid than we thought.
- How deep are we?

The dig actually went to 179.

Uh, the teeth are
just above that,

so we're even digging
below the teeth.

descending into a massive
natural void or solution channel

at a depth of nearly 165 feet,
the team has now discovered

that the cavity in the bedrock,
which may also now contain

the fabled Chappell Vault,
reaches depths

of more than 200 feet
underground.

We're caving in constantly,

so they're getting concerned
from a safety standpoint.

that it is causing the soils
beneath the TB-1 shaft

and hundreds of tons
of heavy equipment to give way.

Every, what, 30-40 minutes

we're stopping to try
to mitigate the collapsing.

But now it's starting
to creep back under the crane.

It's leading towards
sudden collapse.

Yeah, we're gonna
obliterate this place.

There will become
a safety component if it gets

too far under the crane
that we just call a stop.

the minor collapse of earth
around the TB-1 shaft

that began earlier this week

has become increasingly
more dangerous

as the caissons sink lower

into a massive natural cavity

more than 200 feet underground.

If we can't get this down
and we're exacerbating a problem

that we really
truly don't understand,

we need to be done here.

- Yep.
-I say we call it.

Let's not try
and advance the can anymore.

Okay. I hear the boys
firing up the oscillator,

- so let me go
tell them the plan.
-Yeah.

-Yeah.
- Okay.

-Thanks.
-Thank you.

that the fabled
Chappell Vault may lie

somewhere down in the so-called
solution channel...

- Hey, Gary!
- Gary!

too dangerous to pursue it

in the TB-1 shaft.

No treasure in the world is
worth compromising

somebody's safety,

and like I said,

from every negative situation,

you'll learn something from it,

and we did learn
some things from it.

Yeah.

I think we are all on board
with one simple truth,

that the Chappell Vault--
and I still believe it's here--

could have fallen
to those depths

in the solution channel,
and some of us didn't

necessarily believe that
prior to putting this can down.

Right.

to finish TB-1 leads me
to the conclusion

that we may be

overlooking what happened
to this treasure completely.

If the solution channel can
accept a hundred yards of rock

and sand and gravel
just like that in one day,

why couldn't it completely
have taken in the treasure?

I never thought
that was possible before.

That looks pretty good.

Is that where
the treasure hides?

It's possible, but we still
have room to maneuver here.

The location of the next cans
will be important,

but I want to make sure

that we get down
and we get back up safely.

So my hope is that Vanessa

and her team from ROC
can stabilize the area,

and to continue the dig.

We're still true believers.

I'm hoping
the next can we put down,

it'll be
"you better believe it."

-Yeah. Exactly.
-So maybe we should

get together in the war room
and talk about a new plan.

That's a real good idea.

Sempre avanti.

In spite of
a devastating setback,

Rick, Marty and their team
remain determined

that they can and will solve
this 230-year-old mystery.

Because even though
the fabled riches

escaped their grasp,

the team has unearthed

more critical clues
as to where they lie...

...and perhaps
who deposited them.

Can they devise a solution

that will lead them to the vault
and the ultimate answers?

Only time, a bold new strategy

and digging will tell.

Next time on
The Curse of Oak Island...

I think our next target is
what we call Aladdin's cave.

All right, here we go.

and all your wishes
will be granted.

It looks like
there's something here.

Oh, wow.

Look at the head on that thing.

That could have easily
come out of a treasure chest.

These teeth are ready
to bite on some gold.

I love it.

I think we're breaking
through the cave.

Agree.

This could be the most important

hammer grab in history.

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