Original subtitles

[narrator reading]

[man exclaims]

[narrator] After triggering an underground flood

on their first attempt to drill the energy zone...

Damn, that's a lot of water.

[narrator] ...the team was forced to abandon the area

until the water levels finally dropped.

[Chad] You can tell, there's no water running.

[man] Completely dry.

[narrator] With the area dry,

the team could finally return to drilling.

Everybody out of the way. We got the drill coming in now.

[narrator] In an attempt to reach the keyhole cavern

under the energy zone.

But after drilling for two days,

the drill struck an impenetrable layer

120 feet below the surface.

The further we get down, there's like black chunks in there

that are... that we haven't seen before.

This is the...that we're drilling through right now.

That's metal.

[narrator] Searching for answers,

Duane consulted with the Quantum team...

Good to see you again.

[narrator] ...who make a startling discovery.

We found iridium.

Well, iridium means off-Earth, right?

It's not natural to this planet.

But it all boiled back to

a meteorite impact.

Well, that explains why it's so hard

If it was a meteor, there's no way we can get through it.

There is something huge

going on on your property.

We have to find another way in.

[bleep] boys, that deal was harder than diamonds.

Whatever is down there, we're not gonna get through it.

[narrator] The meteorite that the team hits

seems to be approximately

120 feet below the energy zone.

But it's unclear how wide it might be.

If it's large, it may cover the keyhole cavern,

much like a dome.

So I had my dad call in Eric.

I mean, Eric's off on his own adventures,

but he's been here at the range and helped us a lot.

I'm excited to hear what Eric thinks about this meteorite.

Eric, how you doing, brother?

-How's it going, Eric? -How you doing, man?

Hey, Charlie. Hey, James.

How's it going?

-Good, how you doing? -Good, man, good.

[narrator] Geologist Eric Drummond

spent two years with the team

studying the strange landscape

of Blind Frog Ranch.

[Eric] I think we got a meteorite.

[narrator] During his work, he also found

traces of the meteorite.

It's nice holding something that...

-came from outer space. -[man] Yeah.

[Eric] This could be a major discovery.

I miss you guys out there, I'll tell you.

Yeah, we miss you, too, brother.

How are you progressing with your exploration?

Uh, we've been drilling a hole over at the energy zone,

and we're hitting some really hard stuff.

It's even melting the bits.

[Eric] How deep was it?

Maybe 120 feet.

[Chad] We brought in Stephen Leeah.

And he's saying that it could be

a huge meteorite down there.

[Eric] Wow.

So if this actually is a meteorite,

you think we could drill through with the right rig?

I doubt it.

Normally, meteorites are iron and nickel.

And so, they're dense.

But it's like, really really hard,

but you may be able to

dig down around the periphery of it.

For example, I was just back in...

In Ohio,

and I was researching this area called

the serpent mound disturbance.

And it happens to be a meteor impact site.

[narrator] At the serpent mound in Ohio,

native Americans built an enormous snake-shaped structure

on the site of a huge meteorite impact

that happened over 250 million years ago.

Sites of other meteorite impacts

have also been marked in Central and South America

by the Aztecs and other indigenous cultures

who believed that meteorites

were the arrows of the Gods.

More recently, a giant meteorite was extracted

near an indigenous site in Peru.

Could the mysterious keyhole cavern

be a native American structure

built to venerate the meteorite structure

discovered by Stephen Leeah and his team.

[Eric] The serpent mound disturbance,

it's a three-mile diameter impact site.

It hit the earth

and it just fractured everything.

There things hit earth with such force,

just like a bomb,

a huge bomb going off, basically.

Not more than 60 miles from here,

is a meteor crater in Arizona.

And it's created fracturing

around this large impact crater.

I actually live down in that area,

so I've been there many times,

and there's all these caverns and fissures

that have been created by that impact,

that the native Americans have used for

thousands of years.

Could that impact here have created caverns as well?

[Eric] Yeah, absolutely.

Um, large cave systems follow faults,

because there are weak zones in the earth.

So, Eric, if we're dealing with this big meteorite,

and we can't drill through it,

how else are we gonna find another entrance

or a way in?

[Eric] I'm just thinking out loud now, but...

I remember we went into that mine,

and we saw significant amounts of bat guano in there.

You remember that?

Yeah. That's right.

[narrator] Two years ago,

while searching for an opening

into the cavern system,

Eric discovered bat guano inside a cave.

That looks to be, uh, feces from bats or something.

[narrator] However, the cave had high levels of radiation,

and was too dangerous to explore.

And so bat guano, um...

Is known to be high in a compound called nitrates.

These nitrates come up through these fractures,

filtering up into the soil

and you'll find these nitrates

towards the surface.

If we can detect nitrates in the soil,

around these fractured zones or faulted zones,

that may

provide a clue to where

we could search for natural openings.

We could essentially map

this void system by mapping

the bat guano, of high nitrates.

[narrator] If the meteorite impact

created underground fissures and caverns,

one way of detecting them

is by analyzing the soil above.

If high levels of nitrates are found in the dirt,

this would mean that the nitrates from bat guano

might be migrating up

through a fissure or cave.

I mean,

It may sound like kind of a bat [bleep] crazy idea.

-[laughter] -It might just work.

So what do you need from us, Eric.

You can do this with very basic equipment.

You'd wanna take about a...

one kilogram worth of sample.

So one kilogram is maybe two

pretty good handfuls of soil.

GPS in each and every location.

That way we can get back to where these samples came from.

And you can put it in like a ziploc freezer bag.

And send them out to me. I'll give them to a lab.

If you see anything,

out of the ordinary, if you see fractured rock,

or anything like that at the surface,

make any notes that you can on those,

and I'll get them to the lab and take care of the rest.

Thank for helping us out,

I'm sorry I missed you in Las Vegas, New Mexico,

when you came through but...

I hope to get out there again.

And wish you all the best.

Thank you, Eric. Appreciate it.

We got to get some shovels and get going,

-huh, boys? -Yeah.

-[Eric] So get those samples. -All right.

-Let's go. -All right.

[Chad] We get the location, GPS,

grab some bags,

and make sure it's sealed.

Then we're gonna head out to the energy zone,

and kind of fan out.

I'll take the south side,

y'all take the other two.

-Okay. -Then we'll...

-We'll get some samples. -All right.

-Sound good? -[all] Yep.

[narrator] The team plans to collect samples from four areas

of the ranch surrounding the meteorite.

Charlie, Duane and James

will cover the north, east and west

while Chad will take samples from the south.

[Duane] Are these mountains getting bigger or am I getting older.

[all chuckle]

I'll go up here and grab some samples.

[James] He said about two good handfuls.

I'd hate to get stopped by the police on the way out of here

carrying all these bags like this.

They'd have a field day over that.

[Chad] So where we're going now,

this is like exploring the dark side of the moon.

So this is the south side of the energy zone

mountain right here.

This whole area.

So what Eric was saying is,

the nitrates will actually seep up

through the fissures

and come to the surface of the soil

which could lead to a cavern system.

All we need is a crack or a fissure

somewhere to be able to enter.

It's just a matter of time

to be able to find the right one.

[bleep] boy.

Don't make me go the south side,

way up there.

Should I get some samples?

Yeah. They're all marked, everything graded, yep.

[narrator] The team collected and marked 20 samples

from the area surrounding the meteorite,

and will send them to Eric Drummond's lab

for analysis.

-[Chad] We're set. Does that work? -Let's do it. All right.

-[Chad] Hey. -[Charlie] Wassup, man?

I got some big... news here.

Now we're talking.

So we just got the soil samples back.

The east and the west soil samples were a bust.

But the sample I got from the south

had elevated nitrate levels.

[narrator] The samples that Chad collected

south of the meteorite, and energy zone,

show unusally high levels of nitrites,

which means there may be fissures

just below the surface,

where bat guano is migrating upward

from an underground cavern system.

Tha shows that there's a cavern

of bat guano that goes in there.

And if there's bats down there,

there's bat guano all through there,

that means there has to be an opening at the surface.

I think that this is like a back door.

We get in right here, we can track

-all the way to here... -Come up, right.

[Chad] ...and not have to go through that

huge meteorite.

[James] The fissure opening would be near the surface,

so we wouldn't have to drill to reach it.

[Duane] [bleep] ... man.

Let's just go get the excavator

and see if we can find that opening.

Let's go to work.

-[James] Good deal. -[Chad] Let's do it.

[narrator] In order to get the 75,000 pound excavator

to the location of the nitrate deposits,

Duane must first clear a path

through the creek bed which appears dry,

now that the water levels have subsided.

[Chad] We got the track-o,

my dad's gonna make a little pathway

to get across the creek,

so we can get to our spot, start digging.

[Duane] Charlie, boy, do you copy?

We have some serious silt here,

I'm gonna have to bring some dried...

[Duane] Hell of a mudhole.

I was on solid ground the whole time.

And then I turned my tracks and we fell through.

He's trying to build a road

so that we can get right to the site

where we're gonna start digging, but...

We might not get very far.

[Duane] Charlie, boy.

Little bit. How far am I to dry ground?

[Ryan] I think the only digging

we're gonna do today is digging you out.

-Well, we'll get across. -This looks...

This looks really bad. You're about two-three feet down.

[Duane] Yeah.

[Charlie] Over here.

[Duane] Where in the hell is "here" at.

That's damn near forever, Charlie boy.

We might have to abort this one and go lower.

Look out, fellas.

Come on.

Come on... [bleep]

[bleep]

[bleep]

Oh... [bleep]

-[Duane] Charlie. -[Charlie] Yeah.

[Duane] I can't dig this hole... [bleep]

It's just bottomed out.

Yeah.

[Duane] I'm... I'm... [bleep]

-[Charlie] We're sinking, all right. -[Duane] Yeah.

[Charlie] We're going right Titanic on this [bleep]

[Chad] Holy [bleep], man.

God, almighty.

[bleep] ...stuck. Jesus.

What the... [bleep]

Oh!

[Duane] Yo.

[Chad] What the... [bleep]

-Your six foot in the ground right now. -[Duane] Yeah.

I think I hit some quicksand.

[Chad] That's real bad.

I mean I just don't know if a two truck will pull it out.

Can't even see your tracks. Tracks are gone.

[narrator] Quicksand is formed when water becomes trapped

under silt and cannot escape,

and the liquified soil quickly loses it's ability

to support weight.

And the immense weight of Duane's excavator

is causing it to sink rapidly.

See that?

[bleep] ...so he's still sinking, though.

[Duane] We're getting worse and worse.

I mean, we were solid.

And now, it's just like, we're...

There's an undercurrent of muck.

Yeah. Probably got about four hours left

and this summabitch gonna be completely under.

-Thanks for being a cheerleader, Charlie. -[Charlie] Yeah.

I'm trying to get a signal to call the tow truck.

All right. Here. Here we go.

[Duane] I can sense some mud coming in on my feet.

[Charlie] You know, there's an old saying.

That the captain always goes down with the ship.

-Yeah. -[Charlie] And I'm damn glad

I'm just a first mate.

Yeah.

'Cause I always wanted to bring you up.

-[chuckles] -[Charlie] I...

I don't want a promotion.

[laughing]

All right, we need to get a move on, we're sinking.

[trucker] All right. 10-4.

Hey, what's the, uh, ETA on that truck?

He didn't know, but he said he's coming.

The vibration of the engine

is causing it to sink

probably about an inch or so every ten minutes.

If they're not here in the next 30 minutes or so,

we're gonna be out about

-a half million dollars. -Oh.

We gotta get my dad out of there,

before the whole thing sinks and he can't get out.

Hey, man.

I just got over here, what's going on?

[Chad] [bleep] Man, he obviously...

The main problem is, this is quicksand.

And as the engine's running, that vibration's just making it sink

every five minutes it's another inch.

We're... We're screwed, man.

Why does he have to keep it on?

Because, well, if he shuts it off,

all of a sudden, there's flooding in the engine,

The air filter's [beep] wet.

-Yeah. And you won't be able to start it back up. -You can't start it back up.

Then you have a 80,000 pound acher.

[line rings]

Hey, yeah, this is Chad Ollinger.

We're waiting on the tow truck down here at the ranch.

All right, uh... Okay, thank you.

[bleep]

Forty-five min... I don't know if we have 45 minutes.

[Duane] Look at it wiggle, Charlie.

It's serious jiggling.

I mean, there's something don't have a bottom to it.

[Chad] Hey! [bleep] huh?

This thing's getting deeper, man.

Stop moving it around, you're just making it sink faster.

-[bleep] in the cab? -[Charlie] Yeah.

[Chad] Yeah, look at that. Look how much she's already filling up.

[Charlie] Yep.

It's going down fast.

[Duane] If they don't get here pretty quick,

we are [bleep].

There ain't no doubt about that.

They're still out 45 minutes.

[bleep]

I can't get the [bleep] out of here...

[Chad] Oh, we got a big boy, hell yeah.

Yep.

Yeah, that's a winch truck, isn't a tow truck, it's good.

This thing's big.

Howdy, man.

Hey, my dad's stuck in the cab,

we gotta get this thing out of here, ASAP.

[trucker] I can see that.

Right here is, uh, where he went down.

[trucker] All right.

[Chad] He's uh, six foot deep at the minimum.

Yeah.

That's big.

Thanks for coming out, brother.

Now I got a winch truck coming.

[Chad] He's gonna slowly pull you.

Guys, we need to watch out for this cable.

Thing snaps, we got big problems.

[engine revving]

All right, here it goes.

There you go. Hell yeah.

We're moving. We're moving.

All right, it's sinking.

[inaudible] ...down, going deeper.

[trucker] Hey, what?

What's happening is, his nose is getting more buried.

So what do you think, if he pushes down,

lifts his front end up, and pull him like that.

Whenever you get pulled forward,

you're bearing your nose.

So if you can push down,

keep your tracks up.

If it doesn't emerge, we have to break the glass and pull him out.

[narrator] While attempting to pull the excavator out of the quicksand,

the backside has sunk deeper,

pushing water into the engine.

[Chad] Is there any way you think we can...

If we can just scoop that up,

lay it right up there.

-[Duane] I can't stand. -You have to.

-You scoop it... right there. -All right, all right.

All right, I'll do it.

[narrator] Chad's plan is to use the bucket to dig out

some of the quicksand in front of the excavator,

creating a clear path to winch it forward.

You're unhooked.

...now is, uh...

He's pushing all this mud up,

and that's just more force and weight.

So he's digging out in the front of it,

getting it out of the way and building up a road in front of us.

So, uh, we'll have a better chance to pull him out.

Just close to you.

Perfect. Yeah, exactly.

There you go, yeah, perfect.

Yes.

All right, everyone, clear out, guys.

Here we go, boys.

Yeah, we're moving.

Yeah, here you go.

Yeah!

Yeah! here we go. Yeah, let's move this... [bleep]

Hell, yeah.

[engine revving]

[bleep]

So the good news is, we got it out of the main sinkhole,

the quicksand.

But the problem is, now,

is he's just pushing a [bleep] of mud.

And he's having a hard time keeping his nose up.

All right now, I'm... Uncovering the tracks.

These guys want to rig up a chain,

it goes on the outside of the tracks.

So I got to unbury the track,

see how wide it is.

I don't know if I can get to it, man.

It's so [bleep] under there.

Oh [bleep]

[exhales]

[bleep] tracks to that way.

Oh no.

[speaking indistinctly]

[narrator] With the tracks in a perpendicular position,

the winch truck is pulling

75,000 pounds against the grain.

[Chad] Now we got to do the same on the other side

[trucker] Oh yeah.

[bleep]

That was the process.

[narrator] The tow team will need to latch on to the tracks,

to drag it out of the creek.

[Chad] I don't think we'll find that one.

[trucker speaking indistinctly]

[horn beeps]

That'll do.

[bleep] you want me to help you or not, bro.

[bleep]

All right, my man, Wayne's got two winches.

Not one, but [bleep] two.

We got one hooked up to the boom.

Tracko.

Trying to pull the tracks tthrough the second winch.

The secone excavator track was too deep under the mud,

so we can only get one hook on it.

But hopefully, it will be enough to pull him out of there.

Here we go, we got hitched, boys, watch out.

Ho ho!

Push down. He's not pushing down.

Push down.

Down.

There! There! Hup! Hup! Hup! Ho!

Whoa! Hold up, you're pulling me over.

I think that's our only hope.

Let's...

Let's find the other track.

-[trucker] Yeah. -We'll dig it up.

All right. Have him pull me.

[Chad] Y'all ready? Here we go, boys.

[engine revving]

That thing's trashed.

You're gonna have to take it apart

and clean the whole thing.

So the guys were able to get the excavator out of the mud.

That's the good news. But the bad news is,

the excavator's totally wrecked.

Here's the thing, we wanted to

get over there as fast as possible.

'Cause we got a full day of digging right there.

So we got major problems now.

Hey, has anyone seen my dad today?

Do you hear that?

Duane! Nice work!

[Charlie] Back in business now.

That right there is like Duane Ollinger,

'cause he will always pull a rabbit out of his hat.

[narrator] Duane arrives with a replacement excavator

and gets right to work.

That thing was sinking like [bleep]

[narrator] To avoid any further issues,

he takes it the long way around the creek.

The plan is to excavate an area

of loose rock at the foot of the ridge

where the highest levels of nitrates were found.

Damn.

Stop. Let's start digging over here.

[bleep]

Hey! Stop! Stop! Stop! Hold on! Hold on!

Hey! Let's get it here.

[Chad] Look at this. There's a cave, there's a opening.

[narrator] Excavating at the site of high-nitrate concentrations,

Duan has punched into some sort of cavity.

[yelling excitedly]

[Chad] Oh my God.

James, we got something!

Oh I feel that breeze coming through.

-Really? -[James] Yeah. It's cold.

[Charlie] Damn. I can feel it up here.

Get it open.

[grunting]

[grunting]

[James] Be careful.

[Duane] Look at that, Charlie boy.

[Charlie] [bleep] cold there.

[Chad] I told you guys, there's something in here.

I think this is a tunnel.

[Chad] [bleep] Head is in the cave right now.

[Charlie] That goes right back in there, doesn't it?

Oh, yes.

That's a real honeypot, right here.

But be careful, that whole [bleep] could cave in on you.

[Chad] This is tight.

I got it. Here you go.

[panting]

[bleep] Goes way back here.

-Y'all feel the breeze? -Yeah.

The breeze is getting even stronger in here.

[narrator] The last time the team felt such a strong flow of cool air,

was the collapsed mine entrance out at crow creek.

Guys, you can feel cold air coming out from down here.

Are you [bleep] me?

[Chad] Oh man!

This is wild, man.

[grunting]

This goes way down in here.

[Chad] No, it's crawl space for a while,

but it looks like it's...

opens up 'cause there's a huge echo.

[Chad] Yeah. Yeah, we're fine.

Whoever dug this... It's a solid cave.

It sounds like it.

[Charlie] We need to get some equipment up here.

[Duane] We damn sure do.

[narrator] The team plans to explore the tunnel

to see if it might be an entrance

to the keyhole cavern,

where they believe a cache of Aztec gold

might be hidden.

We need to watch out for sure.

-Sounds good. -All right.

[narrator] After getting their gear and flashlights,

the team returns to the cave.

Nah...

[narrator] Veteran cameran Joel Schwartzberg

will accompany the team into the tunnel

to document what they find.

Okay, boys, here we go.

Let's do this.

[James] Is there enough room in there?

Is it a lot?

[Ryan] Any standing water or...

[James] Joel's gonna follow your [bleep] in there.

-[Chad] Oh, that's right. -[Ryan] Same system.

I don't [bleep] know if I'm gonna fit through that.

[Ryan] The water's like ice back here.

I'm seeing frost.

[Chad] [bleep] yeah. It's icy.

[Joel] Hey, man. I cannot turn around here.

Hold on.

-[Ryan] You gotta turn around. -[Joel] Ah!

[Chad] Not a good time to be claustrophobic.

-Hey, Skinner. -[Ryan] What's up?

There'e no way I'm gonna get in here

with the backpack and the magnetometer in it.

It's super-tight back here, man.

Let me hand it to you.

-[Ryan] Can you hand it up, James? -[James] Yeah.

[Joel] Oh... Seriously, I can't even turn.

Oh my God.

[panting]

My God, this is tight.

It is.

[groaning]

Is it bigger in there?

'Cause it's pretty [bleep] tight now.

Jesus, it is tight.

[Joel] I'm starting to get claustrophobic.

[Ryan] Okay. Go...

[Joel] I gotta get out of here.

[Chad] We're together. We'll die together, bro.

[Joel] Not good. It's not about that, I gotta get out of here.

[narrator] Joel is having a sudden attack of claustrophobia,

an intense feeling of panic

brought on by the tightness of the cave.

[Joel] I really gotta get out of here.

-[Joel] Yeah. -[James] All right.

[Ryan] Go, let's go.

[grunting]

[Chad] James, come... Come on up here.

-[Joel] James. I gotta get out of here. -[Chad] Joel is gonna go up.

[Ryan] There's an opening.

[indistinct conversation]

[narrator] The team tries to keep Joel calm.

[bleep] My ankle.

God, this is too [bleep] small for four people.

[narrator] Finally, James is past.

Joel can now crawl toward the exit.

[Joel] Jesus.

[panting]

It's me.

[Joel] There you go.

[man] Got it.

[Joel] I gotta come out.

Jesus.

[exhales]

It's more tighter than it looks, huh?

It's [bleep] tight.

[panting]

But it's really [bleep] tight.

[narrator] After spending a few minutes in a wider section of the tunnel,

Joel has recovered from the panic attack.

[panting]

[narrator] He is able to head back into the narrow passage.

But this time, crawling in backwards

to avoid having to turn around in the tight space.

There's another chamber coming off of here.

Oh yeah, it's another tunnel.

[Chad] Oh!

[narrator] The team has belly-crawled 25 yards

into a cramped void

where the passageway splits into two different tunnels.

But the second tunnel is even tighter than the one

the team has just squeezed through.

I saw a quartz vein that you guys passed up.

[Chad] Really? So this could be

a vein or some kind of, like, bank,

like a storage area or more like a...

It had to have been mined and it's got to me a depository too.

Remember, this goes for hundred of miles everywhere.

Look at this [bleep] It's everywhere.

[Chad] Yeah, we don't have any idea how far this goes.

[Ryan] You can hear it open up...

-Yeah. -[Ryan] ...into something much larger.

[James] Could the Aztecs have discovered this years ago

and used this to hide?

This is just one entrance of many.

And you gotta think about,

if they've been looking for this for hundreds of years,

it's not easy to find.

We're gonna have to go through this.

[Chad] [bleep] ...still going.

Can we fit?

[Chad] It opened up back here.

I see a huge [bleep] cavern here.

-Holy [bleep] -You see?

It's opened up like... and drops off.

[bleep]

[groaning]

[laughing]

Holy [bleep]

[James] Look at the mineralization.

Look at the water ponds that are carving through.

It's creating that carbonic acid.

It's eating the cave. It's a live cave.

[narrator] Carbonic acid forms from rainwater

and carbon dioxide in the air.

A relatively weak acid.

It dissolves softer rocks like limestone,

carving out caves and cavern systems

wherever the two compounds come into contact.

[James] Hello.

[laughing]

Get in here.

Holy [bleep]

It's frikkin' massive.

We are the first people to see this,

possibly in hundreds of years if not thousands.

[narrator] After squeezing through 50 yards

of pitch black subterranean tunnels

beneath Blind Frog Ranch,

Chad and the team

have emerged into a massive cavern.

[James] This is huge.

Oh my God, look at this.

This is exactly what we're looking for.

[Chad] These are giant logs.

[James] Why are there logs down here?

[Chad] Oh my God! Look it! Look at it. Look it.

This is actually huge.

This is... This is... Somebody made this.

-Is that man-made? -It's man-made.

[Chad] You're kidding.

-[Ryan] It's cut out... -[Chad] On my God, it is. It's cut out.

[Ryan] Why is it down here?

[Chad] Damn, wonder how far it goes.

Look at that.

-This means somebody was in here. -[Chad] Yeah.

This is exactly what we're looking for.

-[Ryan] How old is it? -It's weak

Feel that... The wood gives.

[narrator] The hewn logs are evidence

that ancient people have utilized these caves before.

But they are far too large

to come through the narrow tunnel the team entered through,

suggesting there might be a larger tunnel

hidden somewhere in the cavern.

[Ryan] Do you guys see any openings?

[James] I don't see any way out of here.

Yeah, dead end right here.

But how the [bleep] did this wood get here though?

This looks like it's the end right here.

[Rayn] It's gotta keep going down.

[Chad] Gotta make sure.

This is the end of the tunnel right here.

It's just, uh, all jammed up with mud and rocks, and...

Check to see if there's a vertical shaft somewhere.

[Ryan] The fact that we're in a chamber this big right now,

that water had to go somewhere.

It's not just gonna stop here.

It's gonna keep drilling it's way down.

[James] It's like a... a drain.

It's topped up right here.

[bleep]

It sounds hollow. Did you hear that?

-[James] You can. -[Chad] You can feel it.

[James] You can feel this whole ground up here, moving.

Do you think maybe it was covered up?

[Chad] Like a false bottom.

[Ryan] You hear that [bleep]

-You can feel it. You can... -[Chad] Yeah, you can feel it here.

There's something... There's something along here.

-[James] Yeah. -Hundred percent.

[James] Look at this. I mean all the [bleep] built up here.

There's got to be a continuation.

You know there could have been passageways

taht were just sealed up,

because of all the runoff this year.

[Chad] We just don't know how far these rocks go down... you know.

'Cause this could be a whole another entrance right here.

I think you're [bleep] right.

I think that's the next spot to go.

This just might go into another whole cavern.

We need to regroup with your dad

and then figure out some technology to get down here

and maybe break...

-Break down into. -[Chad] Yeah. That's probably a good idea.

This is what we've been looking for, finally.

We've hit so many dead ends and wrong turns,

but also so many clues.

It's taken us years...

It's getting stuck.

...and so much hard work.

It's a marker.

But we finally found an entrance to the cavern systme.

That gold is down here.

And we're gonna find it.

This is amazing.

This is the closest we've ever been.

[groaning]

[bleep]