All language subtitles for Secrets.of.the.Underground.S02E03.Teslas.Final.Secrets.1080p.AMZN.WEB-DL.DD+2.0.H.264-playWEB_track3_[eng]

IN DOWNTOWN DETROIT,
UNDER THE RIVER

AND BELOW
THE CITY STREETS...

THERE'S A WHOLE STAIRCASE
BACK HERE.

...COULD THE SECRETS

OF THE HISTORY'S LARGEST
RUM-RUNNING OPERATION

STILL BE BURIED?

OHH.

IF YOU WERE RUNNING BOOZE,
THIS WOULD BE PERFECT.

WE'LL DIVE INTO DETROIT'S RIVER
OF PROHIBITION LIQUOR

TO SEARCH FOR ANSWERS.

WHAT'S THIS,
RIGHT HERE?

THAT IS DEFINITELY
A HUGE TUNNEL.

THAT'S WHAT
WE'RE LOOKING FOR.

AND IN LONG ISLAND,
NEW YORK,

NIKOLA TESLA
CLAIMED TO HAVE BUILT

SOMETHING SPECTACULAR
AND REVOLUTIONARY...

WOW.
LOOK AT THAT.

...BENEATH HIS
SHUTTERED LAB.

IS THERE STUFF THAT HE DIDN'T
REVEAL HERE SOMEWHERE?

IT'S QUITE POSSIBLE.

WITH A HIGH-TECH
TOOLKIT...

- READY?
- YEP.

THERE'S A TON OF METAL
BURIED THERE.

...WE MIGHT
FINALLY UNCOVER

THE ENIGMATIC SCIENTIST'S

MOST LEGENDARY CREATION.

NOBODY KNOWS
WHAT'S DOWN THERE.

THE WHOLE THING
HAS BEEN SECRET.

BURIED DEEP BELOW
THE EARTH'S SURFACE,

THERE ARE COUNTLESS
UNSOLVED MYSTERIES.

AND TODAY, WE FINALLY HAVE
THE TOOLS TO UNLOCK THEM.

THAT'S AMAZING.

IT'S SUPER DEEP.

I'M ROB NELSON,
A SCIENTIST AND EXPLORER

INVESTIGATING OUR
PLANET'S HIDDEN DEPTHS.

- ROB?
- GETTING DEEPER.

HOLY MOLY, STEFAN.

AND HELPING ME UNCOVER
THESE SUBTERRANEAN SECRETS

IS TECH SPECIALIST
STEFAN BURNS.

OH, MY GOD.
LOOK AT THAT.

TOGETHER...

I GOT SOMETHING!

...WE ARE UNCOVERING
NEW LEADS IN OUR QUEST

TO SOLVE EARTH'S MOST
ENDURING MYSTERIES.

- THERE WE GO.
- WHOO!

THESE ARE THE SECRETS
OF THE UNDERGROUND.

- Captions by VITAC--
www.vitac.com

CAPTIONS PAID FOR BY
DISCOVERY COMMUNICATIONS

DETROIT, MICHIGAN--

BEST KNOWN AS THE BIRTHPLACE
OF MOTORS AND MOTOWN.

BUT IN THE 1920s,
IT WAS ALSO ONCE HOME

TO ONE OF THE NATION'S
BIGGEST BOOTLEGGING OPERATIONS.

STEFAN AND I ARE
IN WINDSOR, CANADA,

WHICH LIES JUST
ACROSS THE WATER

AND PLAYED A KEY ROLE
IN THIS ELICIT VENTURE.

AND 75% OF THE ILLEGAL
BOOZE IMPORTS

CAME THROUGH
DETROIT.

- YEAH.
- FOR THE ENTIRE COUNTRY.

THAT'S RIGHT.
DURING PROHIBITION,

3/4 OF ALL THE ALCOHOL
IMPORTS INTO AMERICA

CAME ACROSS THIS RIVER.

AND THAT'S
A LOT OF BOOZE--

ABOUT 5. 2 MILLION
GALLONS A YEAR.

SO, HOW DID IT ALL
GET ACROSS UNDETECTED?

THAT'S WHAT WE'RE HERE
TO FIND OUT.

WE KNOW THERE'S DISTILLERIES
ALL ALONG THE BORDER HERE

FEEDING DETROIT.

THESE CANADIAN DISTILLERIES
WERE CRANKING OUT WHISKEY

AT A RECORD PACE,

MAKING DETROIT
THE IDEAL POINT OF ENTRY

FOR THE BURGEONING
ILLEGAL BOOZE TRADE.

IN FACT, BY THE MID-1920s,
SMUGGLED ALCOHOL

WAS THE MOTOR CITY'S
SECOND-BIGGEST INDUSTRY,

JUST BEHIND AUTOMOBILES.

AN ILLEGAL TRADE
ON THAT SCALE

WOULD'VE REQUIRED
A SOPHISTICATED

AND EXTENSIVE
DISTRIBUTION NETWORK.

WE KNOW THAT BOATLOADS OF BOOZE
WERE SHIPPED ACROSS THE RIVER

AND SMUGGLERS ALSO DROVE
IN THE CONTRABAND

WHEN THE WATER
FROZE OVER.

SOME EVEN DEPLOYED UNDERWATER,
TORPEDO-LIKE TUBES

THAT WERE FILLED
WITH GALLONS OF WHISKEY.

BUT ALL THESE METHODS
SEEM LIKE SMALL POTATOES,

NOT TO MENTION
PRETTY EASY TO SPOT.

I DON'T THINK THAT'S
ENOUGH, THOUGH,

TO EXPLAIN THE SHEER
AMOUNT OF ILLEGAL IMPORTS

COMING IN FROM
CANADA TO DETROIT.

RIGHT.

SO, COULD THERE HAVE BEEN
A LESS VISIBLE,

HIGHER VOLUME METHOD OF DELIVERY
UNDERGROUND AND OUT OF SIGHT?

FOR DECADES,
THERE HAVE BEEN RUMORS

OF AN ELABORATE
DISTRIBUTION NETWORK,

INCLUDING UNDERGROUND PIPELINES
THAT SPANNED

THE DETROIT RIVERBED
AND FUNNELED A STEADY STREAM

OF BOOZE INTO
AND AROUND THE CITY.

BUT NOW, WE FINALLY
HAVE THE TOOLS

TO LOOK FOR EVIDENCE
OF THAT LOST NETWORK.

AS FAR AS I CAN TELL,
NOBODY'S LOOKED AT THIS MYSTERY

WITH SOME OF THE MODERN
GEOPHYSICAL EQUIPMENT

THAT WE HAVE NOW.

STEFAN AND I BEGIN
OUR INVESTIGATION

AT WHAT WE'VE HEARD

WAS ESSENTIALLY THE STARTING
POINT OF THE SMUGGLING CHAIN.

FROM CANADA'S MAINLAND,
ILLEGAL BOOZE

WAS REPORTEDLY BROUGHT HERE
TO PECHE ISLAND,

A CANADIAN-OWNED
100-ACRE PARK

THAT SITS RIGHT BETWEEN THE TWO
COUNTRIES IN THE DETROIT RIVER.

TODAY, WILDERNESS HAS RECLAIMED
MUCH OF THE ISLAND.

BUT IN THE LATE
19th CENTURY,

IT'S WHERE WHISKEY MAGNATE
HIRAM WALKER

BUILT A LAVISH
SUMMER MANSION.

THIS DEFINITELY LOOKS LIKE
THE REMAINS OF THE OLD ESTATE.

AFTER IT WAS ABANDONED,

THE HOUSE'S CENTRAL
LOCATION ON THE ISLAND

WOULD HAVE MADE IT
A CONVENIENT SAFEHOUSE

FOR STORING CONTRABAND.

I MEAN, IT'D MAKE PERFECT SENSE
FOR SMUGGLERS TO GO AHEAD

AND REPURPOSE
WHAT WAS ALREADY HERE.

FROM WHAT WE KNOW,

THE SMUGGLERS WHO RAN
DETROIT'S BOOTLEGGING OPERATION

WERE SOME OF
THE SMARTEST, SCARIEST,

AND MOST VIOLENT
GANGSTERS OF THEIR ERA.

THEY WERE KNOWN AS
"THE PURPLE GANG,"

AND EVEN AL CAPONE WAS SAID
TO BE AFRAID TO CHALLENGE THEM.

HE OPTED TO FORGE
AN ALLIANCE

RATHER THAN BATTLE THEM
FOR THEIR DETROIT TURF.

ORIGINATING FROM THE CITY'S
LOWER EAST SIDE,

THIS PREDOMINATELY JEWISH MOB
CONTROLLED DETROIT'S UNDERWORLD

AND THE CHAIN OF ALCOHOL
IMPORTS IT THRIVED ON.

AND THEN, UP HERE,
YOU HAVE THE HIDING PLACE

FOR SOME CONTRABAND,
APPARENTLY.

ACCORDING TO LOCALS,
THE GANG SMUGGLERS USED TO HIDE

THEIR STASH
SOMEWHERE ALONG THE EDGE

OF PECHE ISLAND
THAT FACES DETROIT.

ALL RIGHT,
LET'S GET GOING.

GREAT.

SO, THAT'S WHERE
WE'LL BEGIN OUR SEARCH...

USING GROUND-PENETRATING
RADAR.

GPR ALLOWS US TO PEER
BENEATH THE SURFACE

BY EMITTING
PULSES OF ENERGY

AND RECORDING THE TIME IT TAKES
FOR THEM TO BOUNCE BACK,

REVEALING ANY UNUSUAL
FEATURES IN THE EARTH.

LET'S SCAN THIS WAY.
- ALL RIGHT.

SEE ANYTHING?

ROOTS.

BUT WITH ITS BUMPY TERRAIN
AND OVERGROWN WILDERNESS,

SCANNING THE SHORELINE
ISN'T EASY.

- OH, WOW.
- WHAT IS THAT? MORE ROOTS?

- MORE ROOTS.
- YEP.

THE GPR ISN'T REVEALING
ANY OBVIOUS MANMADE STRUCTURES

BENEATH THE SURFACE
OF THE ISLAND,

BUT THERE MAY BE
ANOTHER WAY TO FIND THEM.

OKAY, I GOT
ONE LAST IDEA.

SO, WHILE STEFAN CONTINUES
WITH THE GPR,

I WANT TO GET
A BIRD'S-EYE VIEW.

SO OFTEN, WHEN YOU'RE
ON THE GROUND,

YOU CAN'T SEE EVERYTHING.

YOU CAN GET IT UP IN THE AIR
AND SOMETIMES STUFF POPS OUT.

OKAY, THIS IS A GREAT VIEWPOINT
OF THE WHOLE ISLAND.

YOU CAN SEE DETROIT
IN THE DISTANCE.

FROM 400 FEET ABOVE...

OH, MY GOODNESS.

CANALS EVERYWHERE.

...I CAN SEE WHY THE ISLAND
WOULD BE AN IDEAL SPOT

FOR SMUGGLERS LOOKING TO SLIP
IN AND OUT UNDETECTED.

IT'S MOSTLY WATER
AND TREE COVER,

WHICH ACTUALLY MAKES IT
A PERFECT PLACE

IF YOU WANTED
TO SMUGGLE BOOZE.

100% HIDDEN PASSAGEWAYS
RIGHT HERE.

APART FROM THE CANALS,

NOTHING SEEMS PARTICULARLY
SUSPICIOUS HERE.

BUT THEN...

ALONG THE EDGE
OF THE ISLAND,

I SPOT SOMETHING UNUSUAL
UNDER THE WATER.

THAT IS AMAZING.

OH, STEFAN IS
GONNA LOVE THIS.

COULD THIS BE THE MOUTH
OF DETROIT'S

LONG-LOST
RIVER OF BOOZE?

AND LATER, WE DESCEND
BENEATH SCIENTIST

NIKOLA TESLA'S
ABANDONED LAB...

WHAT DO YOU THINK
THIS THING WAS USED FOR?

...IN SEARCH OF CLUES
TO HIS GREATEST INVENTION...

WELL, LET'S FIGURE OUT
WHAT'S UNDERGROUND.

WILL WE TURN UP EVIDENCE
TO WHAT THE MASTERMIND

WAS WORKING ON HERE?

HOW DID AL CAPONE'S
FIERCEST COMPETITORS--

DETROIT'S NOTORIOUS
PURPLE GANG--

ENGINEER AMERICA'S BIGGEST
BOOZE-SMUGGLING OPERATION?

STEFAN AND I ARE SEARCHING
FOR THE RUM-RUNNING NETWORK

THEY REPORTEDLY BUILT
BENEATH THE DETROIT RIVER.

AND WHILE SURVEYING THE SHORES
OF PECHE ISLAND WITH MY DRONE,

SOMETHING CATCHES MY EYE.

THAT IS WHAT LOOKS TO BE
SOME SORT OF PIPE

COMING OFF
OF THIS ISLAND.

THIS PIPELINE SEEMS VERY RANDOM,
AND IT'S IN THE SAME AREA

WHERE LOCALS SAY A CONTRABAND
RING USED TO OPERATE.

BUT THAT'S NOT THE ONLY
CURIOUS FEATURE.

A LITTLE FARTHER
FROM THE SHORE,

I NOTICE SOMETHING
ELSE SUSPICIOUS.

IT APPEARS TO BE
A GIANT TRENCH

OR SOME SORT OF
UNDERGROUND FEATURE.

AND IT LOOKS BIG.

LET ME SEE
WHERE IT HEADS.

IT HEADS STRAIGHT
TO THE LIGHTHOUSE.

SO, WE HAVE WHAT LOOKS TO BE
PIPE, AND THEN, VERY CLEARLY,

SOME SORT OF DUGOUT
FEATURE UNDERGROUND.

MAYBE A SUBTERRANEAN TUNNEL
THAT'S COLLAPSED

A LITTLE BIT
ON ITSELF.

OH, STEFAN IS
GONNA LOVE THIS.

COULD THIS REALLY BE THE CONDUIT
THAT SUPPLIED SPEAKEASIES

ACROSS THE UNITED STATES
WITH CANADIAN WHISKEY?

TO FIGURE THAT OUT,
I NEED TO GET IN THE WATER.

SO, WE'RE HEADING OUT
WITH PROFESSIONAL WRECK DIVER

MIKE DREXLER AND SOME MEMBERS
OF THE DETROIT POLICE DIVE TEAM.

I THINK IT'S RIGHT
OVER HERE, STEFAN.

THAT'S PECHE ISLAND.

THE BED OF
THE DETROIT RIVER

IS A TREASURE TROVE
OF PROHIBITION RELICS.

FROM THE WATER'S
MURKY DEPTHS,

DIVERS HAVE RECOVERED
LIQUOR BARRELS

AND SEALED BOTTLED
OF HUNDRED-YEAR-OLD SCOTCH.

THERE ARE EVEN REPORTS OF
A SUNKEN MODEL T FORD

OUTFITTED WITH
A WOODEN CART

THAT WAS LIKELY USED
FOR A WHISKEY RUN

ACROSS THE FROZEN RIVER
IN THE DEAD OF WINTER.

SO, WHO KNOWS WHAT ELSE WE'LL
FIND WHEN WE GET IN THE WATER?

OUR BEST OF LUCK.

ALL RIGHT.

ALL RIGHT,
THERE THEY GO.

WHAT'S ODD IS,
WE HAVE THIS FEATURE

GOING FROM CANADA
TO THE U.S.

AND IF IT'S A UTILITY SYSTEM,
YOU WOULDN'T HAVE A UTILITY LINE

CONNECTING THE
TWO COUNTRIES.

THAT JUST DOESN'T
MAKE SENSE.

SO, IF IT'S NOT A UTILITY LINE,
COULD IT HAVE BEEN USED

TO CHANNEL
SOMETHING ELSE STATESIDE?

DOWN IN THE WATER...

I MAKE MY WAY
TOWARDS THE PIPE.

ALONG THE WAY, I EXAMINE SOME
OF THE MORE CURIOUS OBJECTS

LYING ALONG THE BOTTOM
OF THE RIVER--

THE TYPE OF ARTIFACTS
YOU MIGHT EXPECT

TO FIND AROUND
A PROHIBITION PIPELINE--

OLD BRICKS AND BOTTLES.

THAT FEATURE THAT WE SAW,
IT EXTENDED OFFSHORE

AND IT LOOKS LIKE THEY'RE
GETTING REALLY CLOSE

TO THE ANOMALY NOW.

I CAN SEE THE PIPELINE
UP AHEAD.

AND FROM DOWN HERE,

I CAN SEE JUST HOW WIDE
IT REALLY IS.

FARTHER OUT
FROM THE SHORE,

I COME UPON THE TRENCH
I SPOTTED WITH THE DRONE.

IT'S NOT EASY TO DISCERN
DOWN HERE IN THE WATER,

BUT I CAN DEFINITELY FEEL
THE DIFFERENCE IN THE TERRAIN.

AND I HAVE TO WONDER,

COULD THESE FEATURES
BE THE REMNANTS

OF A MANMADE
TUNNEL SYSTEM?

THERE WE GO.

WE GOT TWO DIVERS,
ROB AND MIKE.

WHOO.

I BROUGHT BACK A FEW SOUVENIRS
FOR THE TOPSIDE CREW.

WELL, HERE, LET'S HAND OUT
THE FUNNY STUFF FIRST.

- OKAY, OKAY.
- OH, YEAH.

HOLY COW.

THIS STABBED ME
IN THE LEG.

BUT IF THIS IS NOT EVIDENCE
OF ILLEGAL ACTIVITY--

NOT FROM THE DAYS
OF PROHIBITION, BUT...

LOOK AT THAT.

THERE'S ENOUGH
FOR EVERYBODY.

THERE'S A LOT OF BOTTLES
OF ALCOHOL DOWN THERE.

THIS IS A VERY OLD ONE,
RIGHT THERE.

COULD BE
PROHIBITION TIME.

CLEARLY,
THIS SECTION OF THE RIVERBED

HAS A LOT OF
STORIES TO TELL.

THE PIPELINE ITSELF
IS TRULY MYSTERIOUS.

THE PIPE CAME OUT
FROM THE SHORE.

IT WAS BROKEN IN A FEW PLACES,
SO YOU COULD LOOK INSIDE.

IT WAS BIG.

IT'S WIDE ENOUGH TO HAVE HOUSED
A TRACK OR CONVEYOR SYSTEM

TO SHIP CRATES
OF BOOZE STATESIDE,

BUT THEN IT
ABRUPTLY ENDS,

GIVING WAY TO THAT
CURIOUS TRENCH FEATURE

FARTHER OUT
IN THE WATER.

COULD THE REST OF THE PIPELINE
BE BURIED BENEATH IT?

THERE'S DEFINITELY A CHANGE
IN BOTTOM TOPOGRAPHY THERE,

AND KIND OF, ALMOST,
IN A PERFECT LINE, TOO,

JUST AT THE UPSTREAM
OF THE PIPE.

IT LOOKS LIKE IT WAS
DUG OUT AT SOME POINT

AND PROBABLY
FILLED BACK IN.

THERE'S NO QUESTION--
THESE ARE INTRIGUING FINDS.

RIGHT NOW, I'D SAY
IT'S STILL A MYSTERY.

YEAH.

BUT IF THEY ARE REALLY
REMNANTS OF PROHIBITION'S

LONG-LOST
RIVER OF BOOZE,

THERE WOULD HAVE TO BE AN OUTLET
ON THE OTHER SIDE, RIGHT?

STEFAN AND I ARE NOW HEADED
ACROSS THE DETROIT RIVER

TO SEE IF THERE ARE
ANY CORRESPONDING OUTLETS

ON THE AMERICAN SIDE.

FROM THE AIR, WE COULD SEE
THAT THE TRENCH

WAS POINTING
TOWARDS A LIGHTHOUSE

AT MARINER PARK
ON DETROIT'S EAST SIDE.

ALL RIGHT. WELL,
THIS IS THE DETROIT RIVER.

WE'VE GOT CANADA
OVER THERE.

ACCORDING TO LOCAL TRADITION,
THIS QUIET STRETCH OF LAND

WAS A CRITICAL LINK
IN THE RUM-RUNNING CHAIN.

BUT IF IT WAS,
YOU WOULDN'T KNOW IT TODAY.

YOU KNOW, IT DOESN'T
MAKE SENSE TO ME.

IT'S JUST A SOCCER FIELD
AND THIS SHORELINE.

IT JUST SEEMS,
TO ME, LIKE

THERE WOULDN'T BE A RANDOM
TUNNEL SYSTEM IN AN OPEN FIELD.

IT WOULD HAVE TO GO
TO SOMEWHERE.

MM-HMM. I'M JUST
WONDERING WHY THESE THEORIES

BEHIND THE BOOZE-SMUGGLING
OPERATION PERSISTS

FOR THIS LOCATION.

HMM.

ONE THING I DO SEE IS,
THERE IS A CANAL OVER THERE.

I COULD VERY EASILY
SEE PEOPLE GOING UP

AND DOWN THIS CANAL,
DISGUISED BY THE TREES.

THIS CANAL SEEMS IDEAL
FOR DISTRIBUTING THE BOOZE

INTO DETROIT ONCE IT MADE IT
ACROSS THE RIVER,

UNDER A CANOPY OF TREES
AND THE COVER OF DARKNESS.

OH, YEAH.

LOOK AT THIS.

THIS WOULD BE PERFECT.

AND LOOK AT THAT
CONCRETE OVER THERE.

BROKEN RUBBLE.

THAT DEFINITELY COULD'VE BEEN
THE FOUNDATION OF A HOUSE,

POTENTIALLY WHERE
THEY WERE SMUGGLING BOOZE.

THE TUNNEL SYSTEM COULD'VE
COME OFF OF THIS CANAL.

THE CANAL'S BANKS ARE OVERGROWN
AND TOUGH TO NAVIGATE ON FOOT,

SO ONCE AGAIN, THE BEST POINT
OF VIEW IN THIS CASE...

HERE WE GO.

...MAY BE FROM ABOVE.

ALL RIGHT, STEFAN, LET'S TAKE IT
UP HIGHER, FOLLOW THE TREELINE.

THERE WE GO.

THAT GIVES US
A GOOD VISUAL.

OH, MY GOSH.

LOOK AT ALL THESE HOUSES.

WHAT'S INTERESTING TO ME IS
THAT, THIS CANAL GOES RIGHT UP

TO WHERE ALL
THESE HOUSES ARE.

ANY ONE OF THESE HOUSES
COULD HAVE BEEN A PLACE

FOR SOME BOOZE STASHING.

LOOK AT THAT--
ANOTHER CANAL.

CANALS ALL OVER
THE PLACE.

THERE'S A WHOLE
MARINA HERE.

OH, MY GOSH.

MAYBE THESE RUMORS ARE CENTERED
AROUND THE FACT THAT,

FROM THE CANAL, THEY CAN
TUNNEL IT INTO A HOUSE.

FROM THERE, THIS BOOZE
COULD BE STORED.

IT MAKES PERFECT SENSE.

GRADUALLY, STEFAN AND I
ARE PIECING TOGETHER A SKETCH

OF HOW THE NOTORIOUS
PURPLE GANG

MAINTAINED AMERICA'S BIGGEST
RUM-RUNNING RING.

EVERY DAY, OVER 14,000
GALLONS OF CANADIAN LIQUOR

WAS SHIPPED ACROSS
THE DETROIT RIVER

BY VARIOUS METHODS,

QUITE POSSIBLY
INCLUDING A PIPELINE

ORIGINATING
AT PECHE ISLAND.

THEN, ONCE IT
MADE IT ACROSS,

THE BOOZE WAS SENT
DOWN THESE CANALS

AND STASHED IN SAFEHOUSES
ALONG ITS BANKS.

BUT THEN WHAT?

HOW DID THE LIQUOR MAKES
ITS WAY INTO THE GLASSES

OF AMERICA'S
THIRSTY MASSES?

TO FIGURE THAT OUT, STEFAN AND I
HEAD INTO DOWNTOWN DETROIT

AND CHECK OUT ONE OF THE CITY'S
PRIZED PROHIBITION RELICS--

TOMMY'S DETROIT
BAR & GRILL.

- HEY, GUYS.
- HEY.

- HOW YOU DOING?
- GOOD.

- I'LL HAVE A RUM AND COKE.
- OKAY.

I'LL HAVE THE SAME.

A LITTLE BIT LIGHT
ON THE RUM FOR THIS GUY.

- ME?
- ARE YOU TOMMY?

- I AM TOMMY.
- I'M ROB.

ACCORDING TO ITS OWNER,
TOMMY DURELLE,

THE SITE HAS A HISTORY
DATING BACK TO THE 1840s

AND IT PLAYED A PROMINENT ROLE
IN DETROIT'S PROHIBITION ERA.

THROUGH THE RESEARCH,
WE DO KNOW THAT THE BASEMENT

ACTUALLY BECAME
A SPEAKEASY.

AND RESEARCH SUGGESTS--
AND IT'S BEEN,

YOU KNOW, VERIFIED
ALONG THE WAY--

THAT THIS PLACE WAS CONTROLLED
BY THE INFAMOUS PURPLE GANG.

OH, REALLY?

IN ADDITION TO
ITS TIGHT HOLD

ON DETROIT'S
BOOZE-SMUGGLING OPERATIONS,

THE PURPLE GANG ALSO CONTROLLED
MOST OF THE TOWN'S

ESTIMATED
25,000 SPEAKEASIES--

LIKE THE ONE THAT
WAS HERE AT TOMMY'S.

HEY, GUYS, YOU WANT
TO FOLLOW ME?

SURE.

AFTER UNCOVERING HIS BAR'S
PROHIBITION ROOTS,

TOMMY AND A TEAM
OF LOCAL ARCHAEOLOGISTS

EXPLORED THE PROPERTY.

SO, WE'RE KIND OF WALKING
BACK IN TIME HERE.

AND IN THE BASEMENT,
THEY MADE A STUNNING FIND.

THIS IS THE DOORWAY
TO THE PAST.

HOLY MOLY.

LOOK AT THAT.

STEFAN AND I ARE SEARCHING
FOR THE RUMORED TUNNELS

OF BOOTLEGGING BOOZE
IN DOWNTOWN DETROIT.

OUR INVESTIGATION
HAS BROUGHT US DOWN

INTO THE BASEMENT
OF TOMMY'S BAR.

HOLY MOLY.

LOOK AT THAT.

IS THAT WHAT YOU'RE
TALKING ABOUT?

THAT'S AWESOME.

WOW.

THERE, ARCHAEOLOGISTS UNEARTHED
THE ENTRANCE TO AN OLD TUNNEL.

YOU SEE WHERE THESE WOODEN SLABS
WERE IN THE MIDDLE OF THE BRICK.

THAT COULD'VE BEEN USED TO SET
LIQUOR BOTTLES ON OR SOMETHING,

WHILE THERE WAS
A SPEAKEASY.

DURING PROHIBITION, SPEAKEASY
PATRONS OFTEN USED PASSAGEWAYS

LIKE THIS TO DISCRETELY
ACCESS ELICIT WATERING HOLES.

DO YOU MIND IF STEFAN AND I
GO IN AND TAKE A LOOK?

NOT AT ALL.
AND YOU HAVE A LIGHT.

WOW.
YOU CAME PREPARED.

WE BRING LIGHTS WITH US.

OKAY.
READY?

WOW.
INTERESTING.

YOU'RE NOT GONNA
LIKE THIS STEFAN,

BUT THERE ARE
A LOT OF SPIDERS.

HMM.

ALWAYS SPIDERS.

OH.
OH, WOW.

THIS THING KEEPS GOING.

OKAY, YOU READY?
- YEAH.

I'LL KEEP
THE LIGHT ON YOU.

OH, MAN.

IT'S VERY, VERY OLD.

HOLY MOLY.
- WHAT ARE YOU SEEING?

THERE'S A WHOLE STAIRCASE
BACK HERE.

IT LOOKS LIKE,
IF IT LED SOMEWHERE,

IT'S TOTALLY
BLOCKED OFF NOW.

BUT LOOKS LIKE ABOVE IT,
THERE USED TO BE

SOME SORT OF TRAP DOOR
OR COMPARTMENT.

- REALLY?
- YEAH.

THE TRAP DOOR AND STAIRCASE
WOULD'VE OFFERED SPEAKEASY

PATRONS QUICK ACCESS
FROM THE STREET ABOVE.

BUT THIS MAY NOT BE THE ONLY
SECRET HIDDEN DOWN HERE.

THERE ARE RUMORS THAT
DURING PROHIBITION,

THE BOOZE WAS SMUGGLED INTO
TOMMY'S, NOT FROM STREET LEVEL,

BUT THROUGH
A SUBTERRANEAN ENTRANCE

THAT EXTENDED BENEATH
ITS FOUNDATION.

THE QUESTION IS,
TO WHERE?

STEPPING OUTSIDE...

OH, THIS IS INTERESTING.

RIGHT NEXT TO
THE SPEAKEASY.

...STEFAN AND I HAVE
A EUREKA MOMENT.

CHURCHES WERE ONE OF
THE FEW ORGANIZATIONS

THAT WERE EXEMPT FROM
THE LAWS OF PROHIBITION

BECAUSE THEY SERVED WINE
DURING COMMUNION.

HMM.

AND IF YOU HAVE A SPEAKEASY
NEXT TO A CHURCH,

WHAT BETTER PLACE TO
LEGALLY STORE YOUR BOOZE?

BASEMENT ENDED
SOMEWHERE IN HERE.

YEAH, I MEAN, THIS IS 20 FEET
DISTANCE IN BETWEEN THEM.

BUT THERE'S ANOTHER REASON
FOR THE POSSIBLE CONNECTION.

HISTORICAL RECORDS INDICATE
THAT THIS PARTICULAR CHURCH--

FORT STREET PRESBYTERIAN--
HAD A HIDDEN PASSAGEWAY

THAT WAS PART OF
THE UNDERGROUND RAILROAD.

SO, MAYBE, THERE'S
A TUNNEL BELOW IT

THAT WAS ACTUALLY CONSTRUCTED
TO HARBOR FLEEING SLAVES,

AND THEN, COMMANDEERED
DECADES LATER BY BOOTLEGGERS

TO MOVE THEIR
ELICIT GOODS.

CHECK THIS OUT.

YOU HAVE BRICKS
ON ALL SIDES.

AND THEN, RIGHT HERE IS THE ONLY
AREA WHERE THERE'S, LIKE,

ASPHALT AND ROCKS
COVERING THE GROUND.

- THAT'S WEIRD.
- AND IT GOES RIGHT
TO THE CHURCH.

AS IF THERE WAS SOMETHING
UNDER HERE, WHETHER IT CAVED IN

OR IT WAS FILLED IN
AND THE DIRT SETTLED.

SOMETHING'S GOING ON
RIGHT HERE, FOR SURE.

WELL, IF THERE
WAS A TUNNEL,

YOU SHOULD BE ABLE TO SEE
AN ANOMALY WITH THE GPR, RIGHT?

YEAH.
SO...

OKAY, WELL,
WHY DON'T YOU DO THAT?

I'LL GO CHECK OUT
THE CHURCH

AND SEE IF THERE'S
ANYTHING THAT INDICATES

SOME SORT OF CONNECTION
FROM THAT SIDE.

- HEY.
- HOW YOU DOING?

CUSTODIAN JERRY JOHNSON AGREES
TO LET ME EXPLORE THE BASEMENT.

WHAT?

SECRET ENTRANCE.

CAN WE FIND A WALL THAT FACES
UP TO WHERE TOMMY'S IS?

MEANWHILE...

OUTSIDE THE CHURCH,

STEFAN'S SCAN
IS REVEALING

SOMETHING CURIOUS
BENEATH THE ALLEY.

YEAH, THERE WE GO.

THAT LOOKS LIKE SOMETHING.

SO, FROM HERE...

ALL RIGHT, SO, THAT'S ABOUT
8 FEET RIGHT THERE.

I TOOK SOME MEASUREMENTS ON
THE OUTSIDE OF THE BUILDING.

ESSENTIALLY, WE'RE LOOKING FOR
SOMETHING THAT'S 18 FEET IN,

WHERE THERE COULD BE
A CONNECTION WITH TOMMY'S.

WHAT'S ON THE OTHER
SIDE OF THIS ROOM?

YEAH, I AM RIGHT OVER
THE TOP OF THIS ANOMALY.

I GOT IT,
ONE END OF IT THERE

AND ANOTHER END OF IT

RIGHT THERE.

COULD THIS BE EVIDENCE
OF A PASSAGEWAY

CONNECTING THE TWO
BUILDINGS BELOW GROUND?

OH, YEAH, THAT'S WHAT
I'M TALKING ABOUT.

TOMMY'S IS RIGHT
ACROSS THE ALLEY FROM HERE.

WELL, LOOK AT THIS.

THIS IS EXACTLY WHERE THE HOLE
FROM TOMMY'S WAS COMING OUT.

AND IF YOU LOOK
AT IT, OBVIOUSLY,

THERE'S A LOT OF PATCHWORK
GOING ON HERE.

AND THEN, DOWN HERE, THAT'S
THE ORIGINAL BRICK, DOWN THERE.

YOU CAN SEE THE STONE, IT'S
THE OUTSIDE OF THE BUILDING.

YEAH, THERE'S DEFINITELY
SOMETHING RIGHT HERE,

RIGHT THERE, THAT WE IDENTIFY
HEADING STRAIGHT TO THE CHURCH.

THAT IS VERY LIKELY
A TUNNEL.

THIS IS EXCITING.

IT SEEMS PRETTY CLEAR
THAT A TUNNEL ONCE CONNECTED

TOMMY'S BASEMENT
DIRECTLY TO THE CHURCH.

KIND OF
MAKES SENSE NOW.

YEAH. I MEAN...

THE UNDERGROUND RAILROAD,
PROHIBITION.

YEAH.

THERE WOULD BE DIFFERENT
GROUPS OF PEOPLE

THAT USED IT OVER TIME,
REPURPOSED IT, REBUILT IT.

THE TUNNEL UNDER TOMMY'S
IS ANOTHER TANTALIZING GLIMPSE

OF THE WIDER
SMUGGLING SYSTEM

THAT KEPT AMERICA FLUSH
WITH PROHIBITION BOOZE.

ONCE THE WHISKEY CROSSED
OVER FROM CANADA AND MADE IT

INTO SAFEHOUSES ALONG
THE CANALS NORTH OF DOWNTOWN,

IT COULD'VE FOUND
ITS WAY THROUGH

ANY NUMBER OF UNDERGROUND
PASSAGEWAYS INTO THE LOCAL DIVES

AND FAR BEYOND
THE BOUNDARIES OF DETROIT.

AS FOR THAT RUMORED
TUNNEL TO CANADA,

WE MAY HAVE FOUND
TRACES OF IT...

WE FOUND SO MANY LITTLE
SCATTERED CLUES

AND REMNANTS AND...

...BUT NOT ENOUGH
TO CLOSE THE CASE-- YET.

IT JUST SEEMED TO ME LIKE THERE
SHOULD BE SOME TUNNEL TO CANADA.

THE NETWORK
SEEMED SO HUGE.

I THINK IT EXISTS.

WELL, THERE'S ALWAYS
NEXT TIME.

THERE'S ALWAYS
NEXT TIME. YEAH.

ALL RIGHT.
LET'S GO GET A DRINK.

YEAH.

NOW, FROM A SMUGGLER'S
SECRET RIVER OF BOOZE,

WE'RE DESCENDING INTO
A SCIENTIST'S HIDDEN LAYER.

ON THE NORTH SHORE
OF NEW YORK'S LONG ISLAND

LIES AN ABANDONED
INDUSTRIAL SITE

THAT HOUSES THE ONLY SURVIVING
LAB OF NIKOLA TESLA,

THE ENIGMATIC PHYSICIST

WHOSE REVOLUTIONARY IDEAS
GALVANIZED THE WORLD.

THE MAN WHO PAVED THE WAY
FOR RADIO, X-RAYS,

AND ROBOTS WAS ALSO KNOWN FOR
HIS MORE FANTASTICAL PURSUITS,

FROM EXTRATERRESTRIAL
COMMUNICATION,

TO DESTRUCTIVE
PARTICLE BEAMS.

SO, COULD HIS OLD LAB SHED LIGHT
ON HIS MOST ASTOUNDING SECRETS?

WHOA.

LOOK AT THIS.

YEAH. THIS MUST BE
THE OLD SITE.

EVER SINCE TESLA'S
DEATH IN 1943,

THERE HAS BEEN SPECULATION,
FUELED BY HIS OWN STATEMENTS,

THAT HIS GREATEST BREAKTHROUGHS
COULD LAY HIDDEN

SOMEWHERE ON
THIS PROPERTY.

RUMORS HAVE EVEN FLOWN
ABOUT UNDERGROUND PASSAGEWAYS

OR A SUBTERRANEAN
PART OF THE LAB

FOR TESLA'S MOST
PIONEERING WORK.

BUT DIGGING UP THE GROUND
IS NOT AN OPTION.

AFTER TESLA LEFT, A COMPANY
THAT TOOK OVER THE PROPERTY

DUMPED HAZARDOUS CHEMICALS
ON THE SITE,

SO THE ONLY WAY TO FIND OUT
WHAT'S BENEATH THE EARTH

IS TO SCAN THE LAND
WITH OUR HIGH-TECH TOOLS.

I THINK THAT'S
WHAT'S FASCINATING IS THAT,

NOBODY KNOWS
WHAT'S DOWN THERE.

THE WHOLE THING
HAS BEEN SECRET.

YEAH.
HE WAS VERY QUIET.

THROUGHOUT HIS CAREER,
THERE HAVE BEEN RUMORS OF TESLA

HAVING WORKED ON A BIZARRE
WEATHER-CONTROLLING MACHINE,

A POWERFUL RADIO
TO CONTACT ALIEN LIFE--

AND MOST FASCINATING
OF ALL--

A DEVASTATING
TOP-SECRET SUPER WEAPON

THAT COULD'VE
REVOLUTIONIZED WARFARE.

IT WAS SAID THAT,
IN HIS LATER YEARS,

TESLA WAS DEVELOPING A WEAPON
HE CALLED "THE DEATH RAY."

IRONICALLY, HE HOPED THE DEVICE
WOULD DISCOURAGE ALL WAR

BECAUSE OF ITS INCREDIBLY
DEVASTATING POWER.

ACCORDING TO THE INVENTOR,
THE WEAPON COULD SHOOT OUT

A TARGETED BEAM OF ENERGY
SO INTENSE

IT COULD BRING DOWN
10,000 ENEMY PLANES

FROM AS FAR AS
250 MILES AWAY.

WHETHER THE CLAIM WAS TRUE
REMAINS UNKNOWN,

BUT AFTER TESLA'S DEATH,
THE U.S. MILITARY

DID COPY HIS PAPERS
ON WEAPON TECHNOLOGY.

I'M TRYING TO IMAGINE WHAT WAS
GOING THROUGH HIS MIND.

COULD CLUES TO THE EXISTENCE
OF SUCH A DEVICE

OR OTHER BRILLIANT
INVENTIONS

LIE BURIED
BENEATH THE SITE?

WHAT WILL WE DISCOVER ABOUT
THE REVOLUTIONARY THINKER

WHEN WE PEER
BELOW THE GROUND?

COMING UP...

WE DROP DOWN INTO
A STRANGE CHAMBER

UNCOVERED WHILE
EXPLORING THE LAND.

THERE'S SOMETHING DEAD
IN HERE.

STEFAN AND I ARE INVESTIGATING
RUMORS OF A SUBTERRANEAN SECTION

OF SCIENTIST NIKOLA
TESLA'S LAB...

WHOA.
LOOK AT THIS.

...ONE THAT COULD HOLD CLUES
TO WHAT INVENTION

HE COULD HAVE BEEN
WORKING ON HERE.

HEY, STEFAN?

CHECK THIS OUT.

SCANNING THE GROUNDS, WE
QUICKLY SPOT SOMETHING CURIOUS.

WHOA.

HERE, HELP ME
TAKE THIS COVER OFF.

WOW.
LOOK AT THAT.

COULD THIS BE A PORTAL
INTO LONG-LOST UNDERGROUND PARTS

OF TESLA'S LAB?

IT ACTUALLY WILL BE
INTERESTING TO SEE

IF IT CONNECTED
TO ANYTHING.

IT WARRANTS A LOOK.

OKAY, LET'S GET
THE LADDER.

YEAH.

WE KNOW THAT, WHEN HE OPENED
HIS LONG ISLAND LAB IN 1901,

TESLA WAS EMBARKING ON ONE
OF HIS MOST AUDACIOUS QUESTS,

AND ONE THAT WOULD'VE
REVOLUTIONIZED LIFE ON EARTH--

FREE WIRELESS
ELECTRICITY FOR ALL.

TO TEST THIS WILD IDEA,
TESLA CONSTRUCTED

A GIANT STEEL-AND-WOOD-FRAMED
TOWER THAT STOOD 187 FEET TALL.

HE PLANNED TO DISTRIBUTE
ELECTRICITY FROM THE TOWER

BY TAPPING INTO THE EARTH.

AND HE REPORTEDLY BUILT
AN ELABORATE UNDERGROUND SYSTEM

TO DO IT.

THE SETUP INCLUDED
A COLOSSAL SHAFT

THAT DESCENDED 120 FEET
BELOW THE TOWER.

AND AT ITS BASE
WAS A SET OF STEEL PIPES,

EACH 300 FEET
IN LENGTH.

TESLA ALSO DESCRIBED
SUBTERRANEAN PASSAGES

AROUND THE PIPES,

BUT STRANGELY, NEVER SEEMED TO
SPECIFY WHY THEY WERE THERE.

SO, DO THESE UNDERGROUND
STRUCTURES ACTUALLY EXIST?

AND IF SO, COULD THEY STILL BE
HIDING SOMETHING GROUNDBREAKING,

LIKE EVIDENCE OF
THE RUMORED SUPER-WEAPON

OR ANOTHER
INCREDIBLE INVENTION?

STEFAN AND I ARE
IN THE CAVERN.

THIS PLACE IS
KIND OF CREEPY.

WE'VE GOT SOME
MASSIVE SLUGS IN HERE.

OH, STEFAN.

OUR FIRST GLIMPSE BENEATH
THE SURFACE OF THE SITE

ONLY ADDS TO THE MYSTERY.

WHAT IS THAT?

THERE'S SOMETHING DEAD
IN HERE.

SKELETON.

I'M GUESSING THIS IS HIS CAT,
SOMEBODY'S DOG.

HOW DID THIS
EVEN GET HERE?

I THINK IT FELL IN.

LOOKING AROUND,
STEFAN AND I TRY TO DECIPHER

WHETHER THIS
STRANGE CHAMBER

WAS SOMEHOW TIED TO TESLA'S
MASTER PLAN FOR THE SITE.

WHAT DO YOU THINK
THIS THING WAS USED FOR?

IF YOU LOOK DOWN
THIS PIPE HERE.

BUT OUR INSPECTION SUGGESTS
SOMETHING MORE MUNDANE.

I THINK THIS MIGHT'VE BEEN
AN OLD SEWER CISTERN.

A GIANT SEPTIC TANK?

YEAH.

LET'S FACE IT--
IF THE GENIUS SCIENTIST

DID CREATE A SECRET
SUBTERRANEAN NETWORK,

FINDING AN ENTRANCE TO IT
PROBABLY WOULDN'T BE THIS EASY.

STEFAN AND I WILL HAVE
TO TRY ANOTHER TACTIC,

ONE THAT WILL ALLOW US TO PEER
DEEPER BENEATH THE SURFACE.

WELL, LET'S FIGURE OUT
WHAT'S UNDERGROUND.

YEAH.
LET'S DO IT.

WE'VE BROUGHT ALONG
A MAGNETOMETER--

A HIGH-TECH TOOL
THAT DETECT FLUCTUATIONS

IN THE EARTH'S
MAGNETIC FIELD.

A SPIKE IN THE READINGS
WOULD INDICATE

HIGH CONCENTRATIONS
OF METAL,

WHICH WILL REVEAL
ANY TUNNELS OR CHAMBERS

MADE OF REINFORCED
CONCRETE.

OKAY.
GOOD TO GO.

ALL RIGHT, SO, THIS IS
WHAT I'M THINKING.

WE'LL JUST SCAN
THIS WHOLE AREA.

- YEAH.
- ZIGZAG BACK AND FORTH?

YEAH. WE HAVE NO IDEA
WHERE THESE STRUCTURES--

IF THEY EXIST--
ARE LOCATED.

ALL RIGHT,
DO YOUR THING.

AWESOME.

THIS TYPE OF SCANNING HAS
NEVER BEEN DONE HERE BEFORE.

SO, WILL OUR TECH UNEARTH
A HIDDEN STRUCTURE

THAT HARBORS SOME UNDISCOVERED
SCIENTIFIC BREAKTHROUGH?

WHILE STEFAN
MAPS THE SITE,

I WANT TO GET
A BETTER UNDERSTANDING

OF EXACTLY WHAT TESLA
WAS TRYING TO DO HERE.

SO, I MEET UP WITH
PHYSICIST NEIL BAGGETT.

HE WAS PUSHING THE EDGES
IN ALL DIRECTIONS.

HE SITS ON THE BOARD OF
THE GROUP THAT NOW OWNS THE LAND

AND IS DEDICATED TO PRESERVING
THE SCIENTIST'S LEGACY.

THIS GRAND PLAN OF HIS--
TO PROVIDE ENERGY FOR EVERYBODY,

TO CREATE FREE ENERGY--

IS THAT SOMETHING
THAT'S POSSIBLE?

I THINK WE DON'T
KNOW THE ANSWER.

I HAVE LEARNED BY STUDYING
PHYSICS NOT TO EVER SAY "NEVER."

WHAT HE WAS TRYING TO DO WAS--
IN THIS LAB--

TO BUILD HUGE GENERATORS
AND CAPACITORS

SO THAT HE COULD
PROVIDE A LOT OF POWER.

AND HE WOULD TRANSMIT
THAT OUT TO THIS TOWER,

WHICH IS REALLY JUST
A LARGE RESIDENT TRANSFORMER.

SO, HE WOULD
CHARGE IT UP,

AND THEN, DELIVER THE BLAST
OF ENERGY TO THE EARTH.

IN JULY OF 1903,
WITNESSES FROM MILES AWAY

REPORTED SEEING BLINDING
FLASHES OF LIGHTNING

SHOOTING OUT
FROM THE TOWER.

IT WAS A STARTLING
DISPLAY OF THE POWER

OF TESLA'S
REVOLUTIONARY IDEAS.

BUT DID HE HAVE OTHERS
THAT WEREN'T SO VISIBLE?

TESLA SEEMED TO BE VERY
SECRETIVE IN ALL OF HIS WORK.

DO WE KNOW
WHAT'S UNDER HERE?

I THINK THE ANSWER IS,
WE DON'T.

HE WAS SECRETIVE.

HE KEPT IT ALL CLOSE.

AND NOW THAT WE HAVE
THE HIGH-TECH TOOLS

TO PEER DEEP
INTO THE GROUND,

PERHAPS WE CAN FINALLY
UNCOVER THOSE SECRETS

THAT TESLA MAY HAVE
LEFT BEHIND.

WHEN STEFAN FINISHES
SCANNING THE GROUNDS,

WE CHECK OUT THE RESULTS.

ALL RIGHT, LET'S SEE
WHAT THE DATA SAYS.
- YEAH.

THE MAPS THAT HE GENERATES
REVEAL A SURPRISING FIND.

OH, WOW.
WHAT'S THAT?

STEFAN AND I ARE
EXPLORING THE GROUNDS

SURROUNDING NIKOLA TESLA'S
ONLY SURVIVING LAB,

INVESTIGATING WHETHER EVIDENCE
OF HIS GREATEST INVENTION

MAY STILL LIE BURIED HERE.

WE'VE JUST SCANNED THE SITE
WITH A MAGNETOMETER,

WHICH SEEMS TO HAVE REVEALED
SOME SURPRISES.

ALL RIGHT, SO, THIS IS
DETECTING THE MAGNETIC FIELD.

- YEAH.
- THE DIFFERENCES
IN THE MAGNETIC FIELD.

OH, WOW.
LOOK AT THAT.

A LARGE, CIRCULAR FEATURE
RIGHT BELOW THE TOWER BASE

IMMEDIATELY STANDS OUT.

SO, SCREAMING THE FACT THAT

THERE'S A TON OF METAL
BURIED THERE.

THOSE ARE THE SPIKES.

MASSIVE JUMPS
IN THE MAGNETIC FIELD.

THESE SPIKES COULD WELL BE
REMNANTS OF THE GIANT SHAFT

AND TUNNELS THAT TESLA CLAIMED
TO HAVE BUILT BELOW GROUND.

BUT THEN...

WHAT'S THAT?

YEAH. THAT,
I DON'T KNOW.

...WE NOTICE TWO OTHER
SUSPICIOUS SPOTS

RIGHT NEXT TO
THE OLD LAB

IN A PLACE THAT SEEMS
UNCONNECTED TO THE TOWER.

WE EXAMINE DIFFERENT MODELS
TO BETTER PINPOINT

WHERE THEY'RE POSITIONED
IN RELATION TO THE LAB.

THERE'S NOTHING THERE, THEN, ALL
OF A SUDDEN, THESE GUYS POP UP.

AND THEY'RE RIGHT IN LINE
FROM THE CORNERS OF THIS

BUILDING GOING
RIGHT DOWN.

DO YOU THINK THAT'S, MAYBE,
THE METAL TO A ROOM?

IF THERE IS A LARGE,
LET'S SAY, VOID OR ROOM THERE,

IT'S GONNA CHANGE
THE MAGNETIC FIELD SLIGHTLY.

AND YOU'LL SEE THAT THIS READOUT
IS DIFFERENT FROM THE REST,

BUT IT'S NOT AS HIGH
OF A DIFFERENCE

AS THIS RING STRUCTURE.

SO, THAT KIND OF
MAKES SENSE.

YOU KNOW, IT'S RIGHT AROUND
THE RIGHT VALUES

YOU'D EXPECT FOR
SOMETHING LIKE THAT.

COULD THESE BE TUNNELS
OR CHAMBERS

WHERE TESLA CARRIED
OUT SECRET WORK?

WHY WOULD THERE BE
A ROOM THERE?

- YEAH.
- WHAT WOULD HE HAVE USED IT FOR?

WE NEED TO INVESTIGATE
THESE MORE.

TO FIND OUT, WE NEED
TO RUN MORE TESTS.

ALL RIGHT, LET'S ROLL THIS OUT.
- YEAH.

BUT IT'S STILL UNCLEAR WHETHER
THESE SUSPICIOUS FEATURES

ARE OPEN SPACES
OR JUST PILES OF SCRAP METAL.

I THINK THIS IS
ABOUT GOOD.

ALL RIGHT, GOT THE UNIT.

SO, WE'RE TURNING TO AN ADVANCED
IMAGING TECHNIQUE CALLED "ERT,"

WHICH IS BETTER SUITED
FOR IDENTIFYING CAVITIES

HIDDEN BELOW OUR FEET.

LET'S POWER UP.

ARE WE ALL HOOKED UP?

WE'RE ALL HOOKED UP.

ALL RIGHT.
I'M MEASURING.

WE HAVE OVER
120 FEET LAID OUT.

OVER A CENTURY AGO,

TESLA'S TOWER WOULD'VE
SHOT BOLTS OF ELECTRICITY

THROUGH THE AIR
ABOVE THIS SITE.

FOR OUR
GROUNDBREAKING SCAN,

THIS DEVICE WILL SEND
ELECTRICITY THROUGH THE EARTH

TO REVEAL ANY UNUSUAL VOIDS,
LIKE A HIDDEN TUNNEL OR CHAMBER.

WE'RE GONNA
BE ABLE TO SEE

WHAT AREAS OF THE GROUND
CONDUCT ELECTRICITY WELL

AND WHICH AREAS DON'T.

AND THAT'LL ALLOW US
TO MAP OUT

THE SUBTERRANEAN
STRUCTURE OF THE GROUND.

ALL RIGHT, LAST ONE.

- READY?
- YEP.

IT WILL TAKE SOME TIME TO CREATE
OUR FIRST-EVER ERT MAP

OF THE SITE.

ALL RIGHT, WE'RE GOING.

SO, IN THE MEANTIME,
WE'LL TURN OUR ATTENTION

TO THE PART OF THE PROPERTY
WE'VE YET TO EXPLORE--

NIKOLA TESLA'S
LAB ITSELF.

IT'S, LIKE,
SUPER CREEPY, THOUGH.

IF UNDERGROUND STRUCTURES
DO EXIST, IT SEEMS LOGICAL

THEY COULD'VE BEEN
DIRECTLY ACCESSIBLE

FROM THE GENIUS'
HEADQUARTERS.

SO, JUST WHAT IS BEHIND THE
WALLS OF TESLA'S FORGOTTEN LAIR?

THE ANSWER HAS REMAINED
ELUSIVE, IN PART,

BECAUSE THE NEGLECTED LAB
HAS BEEN CONSUMED

BY POTENTIALLY
HAZARDOUS MOLD

THAT MAKES IT
DANGEROUS TO ENTER.

BUT WE'VE FOUND A WAY TO GET
AN UNPRECEDENTED GLIMPSE

OF WHAT LIES INSIDE.

ENTER, THE ROBOT BRIGADE.

WE'VE CALLED IN
SOME FRIENDS FROM

THE UNIVERSITY OF PENNSYLVANIA'S
ROBOTICS TEAM,

AND THEY'VE GOT JUST
THE RIGHT GADGET FOR HIS JOB--

A LiDAR-EQUIPPED ROV.

THIS IS PRETTY AWESOME.

SO, WHAT WE'RE REALLY INTERESTED
IN ARE ANY CONNECTIONS

THAT MIGHT POINT TO
UNDERGROUND PASSAGEWAYS.

SO, THIS HAS
A 3D LiDAR UP TOP HERE,

WHICH IS SIMILAR TO WHAT'S USED
IN SELF-DRIVING CARS.

IT GIVES THE ROBOT A FULL
360° VIEW OF WHAT--

WHAT THE ENVIRONMENT
LOOKS LIKE.

AWESOME.
PERFECT.

WITH LiDAR-- SHORT FOR "LIGHT
DETECTION AND RANGING"--

A SCANNER EMITS
LASER PULSES

THAT MAKE A DETAILED
3D MAP OF THE INTERIOR

AND REVEAL
ANY HIDDEN PORTALS

THAT COULD CONNECT
TO AN UNDERGROUND LEVEL.

FOR DECADES,
THE WORLD HAS WONDERED,

WHAT WAS THE ECCENTRIC
GENIUS INVENTOR

CREATING BEHIND
THESE WALLS?

AND NOW, WE HAVE THE CHANCE
TO SEARCH FOR THE ANSWER

WITH OUR DETAILED SCANS
OF HIS SHUTTERED LAIR.

COMING UP...

WE'LL SEND IN THE ROBOT

TO GET A LOOK INSIDE
THE BOARDED-UP BUILDING

THAT STOOD ABANDONED
FOR YEARS.

WHAT IS THAT?

THAT'S VERY BIZARRE.

STEFAN AND I ARE ON
NEW YORK'S LONG ISLAND

ON A QUEST TO UNCOVER
NIKOLA TESLA'S BURIED SECRETS,

AND WE'RE NOW EXPLORING
THE CONTAMINATED BUILDING

THAT WAS THE
SCIENTIST'S OLD LAB.

AS ONE OF THE TEAM MEMBERS
NAVIGATES THE ROV...

OH, YEAH.

LOOK AT THAT.

...THE REST OF US
CAN STILL TRACK ITS MOVEMENTS

IN REAL TIME.

OH, THERE WE GO.
THERE WE GO, THERE WE GO.

AND THIS IS US, RIGHT HERE?
- YEAH.

THAT IS SO AWESOME.

CAN YOU SPIN IT AROUND
AND KIND OF GIVE US A FEEL

FOR WHERE
WE'RE GOING RIGHT HERE?

OH, MY GOSH.

INCREDIBLE.

TONS OF HALLWAYS.

ONE THING
WE START TO NOTICE

IS THE BUILDING'S
ODD CONFIGURATION.

SOME SORT OF ROOM,
LONG HALLWAY.

YEP.

DOORWAY HERE,
ANOTHER DOORWAY HERE.

I'VE NEVER SEEN A
BUILDING WHERE, ALL OF A SUDDEN,

YOU GO TO THE CORNER OF THE
ROOM, AND ALL OF A SUDDEN,

THIS OPENS
INTO ANOTHER ROOM.

THAT'S VERY BIZARRE,
RIGHT THERE.

IT'S INTERESTING THAT
YOU HAVE THIS WALL HERE--

IT'S COMPLETELY BLOCKED,
BLOCKED, BLOCKED.

AND THEN, LIKE,
HOW DO YOU GET OVER HERE?

THIS WHOLE AREA,
WE'RE NOT ABLE TO SEE.

THERE VERY EASILY
COULD BE SOMETHING IN THERE.

WE CAN ONLY SEE SO MUCH
IN REAL TIME WITH THIS 2D MAP,

SO STEFAN ASSEMBLES A FIRST-EVER
3D VERSION OF THIS SCAN...

OKAY, SO,
WHAT DO YOU GOT?

ALL RIGHT. SO, HERE'S THE
LiDAR DATA THAT WE COLLECTED.

...ONE THAT WILL
ALLOW US

TO EXPLORE
THESE FORGOTTEN ROOMS

IN A BRAND-NEW WAY.

THIS IS DEFINITELY
A WEIRD BUILDING.

ESPECIALLY, LIKE,
RIGHT HERE, LOOK AT THIS.

THAT'S UNUSUAL.

YOU GO INSIDE THIS ROOM AND
THERE'S NO DOORS OR ANYTHING.

AND THEN,
THERE'S A SINGLE CUT-OUT

IN THE CORNER
OF THE ROOM.

HOLY MOLY.

WE HAVE NO IDEA WHAT'S IN THERE,
AND IT WAS TOO SMALL

FOR OUR ROVER
TO GO THROUGH.

HUH.

HERE, ZOOM IN
RIGHT HERE, STEFAN.

IT'S LIKE A ROOM
WITHIN A ROOM.

THIS ROOM IS ENCLOSED,
ALL BUT THAT CORNER.

THIS IS ANOTHER COMPELLING SIGN
THAT THE RUMORS OF HIDDEN ROOMS

MAY ACTUALLY BE TRUE.

BUT THAT'S NOT ALL.

THE RESULTS FOR THOSE TWO
SUSPICIOUS SPOTS NEAR THE LAB

ARE EVEN MORE
INTRIGUING.

EARLIER, WE MEASURED
THE FLOW OF ELECTRIC CURRENTS

TO MAP THEM
IN MORE DETAIL

AND TO SEE IF THEY COULD BE
HIDDEN ROOMS OR PASSAGEWAYS.

SO, WE'RE LOOKING FOR
AN AIR GAP,

SO WE'D BE LOOKING FOR

THESE LIGHT-BLUE
AND LIGHT-GREEN AREAS.

SO, HERE WE HAVE
THE GRAIN CHANGE.

IT'S JUST SUPER SHARP.

IT'S ALMOST LIKE SOMEONE
BORED A TUNNEL

DIRECTLY THROUGH
THIS ROCK.

AND IT GOES
SUPER DEEP, TOO.

- YEAH.
- I MEAN, IS THAT A TUNNEL?

IT COULD BE A ROOM.

THAT IS EXACTLY WHAT A TUNNEL OR
A ROOM WOULD LOOK LIKE WITH ERT.

I'M PRETTY SURE WE FOUND
TWO PASSAGEWAYS UNDERGROUND.

HUH.

OUR SCANS HAVE REVEALED
TESLA'S LAST-STANDING LAB

IN A GROUNDBREAKING
NEW LIGHT.

OUR CUTTING-EDGE LiDAR MAP HAS
SHOWN ODD ROOM CONFIGURATIONS

THAT COULD BE HIDING SOME KIND
OF SUBTERRANEAN ENTRANCE.

AND BY SHOOTING BOLTS
OF ELECTRICITY INTO THIS GROUND,

WE'VE REVEALED THE PRESENCE OF
TWO POSSIBLE CHAMBERS OR TUNNELS

LURKING NEAR
THE ABANDONED STRUCTURE.

COULD WE HAVE FINALLY
REVEALED CLUES

POINTING TO A BIZARRE
GROUNDBREAKING INVENTION--

LIKE THE RUMORED
SUPER WEAPON--

OR ANOTHER BRILLIANT PROJECT
FROM THE GENIUS SCIENTIST?

BECAUSE OF THE
ENVIRONMENTAL HAZARDS,

GETTING APPROVAL FOR AN
EXCAVATION MAY TAKE SOME TIME.

BUT GIVEN THOSE SUSPICIOUS
AREAS WE'VE FOUND

AND THE LAB'S
ODD CONFIGURATION,

WHEN AND IF THE TIME COMES,
WE'LL BE READY.

AND IF NOTHING ELSE,
OUR INVESTIGATION ONLY ADDS FUEL

TO THE SPECULATION

THAT THERE'S MORE WE DON'T
KNOW ABOUT NIKOLA TESLA.

THIS IS EXCITING.

- NICE JOB.
- YEAH, RIGHT ON.