Original subtitles

[mechanical whirring] [static]

[Harry] Worldwide,

36 billion cameras are watching us.

[Harry] On our screens,

at work,

and in our homes. [static]

[Harry] They capture things that seem impossible. [whooshing]

Science says this shouldn't happen.

[boy] Do you see that?

[Harry] Experts carry out forensic analysis

of these unusual events. [explosions]

Wow, what a blast.

[explosion]

-[explosion] -[woman screaming]

This doesn't make sense.

[distorted screech]

There has to be some sort of explanation.

What else is going on here?

[mechanical whirring]

-[Harry] Coming up... -[snow crunching]

[Harry] Are trucks delivering danger to Kansas City neighborhoods?

[explosion]

It's like a rolling fireball moving down the street.

[Harry] In a remote village...

Oh, my God.

[Harry] A bizarre baby worshipped as a God.

Could this be a strange mutant crossbreed

between a human and a goat?

-[Harry] And two friends... -[yelling]

...have a demonic encounter on a deserted road.

Suddenly, she's running at them.

[yelling in foreign language]

You think it can't get worse?

It does.

[throaty screeching]

[yelling in foreign language]

-[static] -[mechanical whirring]

[Harry] Bizarre phenomena.

Oh, my gosh. [gasps]

-[Harry] Mysteries caught on camera. -[explosion]

[child crying]

-[tires screeching] -[Harry] What's the truth behind this strange evidence?

[static]

[Harry] The Irbid Mountains,

northern Jordan.

-[mechanical whirring] -[electronic beeping]

[Harry] December 2014.

[electronic beeping]

[Harry] Two young men

are driving along a dark, deserted country road

when their car's engine mysteriously cuts off.

[speaking in foreign language]

-[distorted rattling] -[hiss]

[Harry] A strange figure steps out of the darkness.

[Jeff] She's dressed entirely in white.

She's hunched over, her hair is wild

and all over the place.

It's absolutely frightening.

[speaking in foreign language]

It appears to be walking

with a walking stick like a big cane.

[Martin] It's one of the creepiest things I've ever seen.

Suddenly, she's running at them.

[yelling]

[yelling in foreign language]

This poor driver,

I don't know if he's ever been this frightened in his entire life.

He's clearly panicked.

[yelling in foreign language]

[indistinct yelling]

They keep backing up and she keeps coming,

they keep backing up, she keeps advancing.

And she's pursuing them, it seems like.

You think it can't get worse? It does.

[throaty screeching]

[yelling in foreign language]

It's the most terrifying sound I think I've ever heard.

[throaty screeching]

[yelling]

It sounds like pure evil.

This poor guy, he's terrified.

He sounds genuinely frightened.

[yelling]

[yelling]

-[engine revving] -[yelling]

What is she and what does she want?

[static]

[Harry] In Jordan, locals believe

the video has captured something supernatural.

[Jeff] In this region, and really, across the whole world,

there's a belief in this supernatural or even preternatural power.

For many,

this eerie white figure is a djinn.

Djinn is actually the root of the word genie,

which we know from like tales, Aladdin, Arabian Nights.

[Harry] Djinn are not the lamp-dwelling,

wish-granting servants from Hollywood films.

They're widely known to be shapeshifters

and have other sorts of superhuman powers.

[distorted wailing]

Basically, in short,

demons.

[Harry] The Quran tells believers that djinn are real.

[Craig] Some don't even want to talk about it.

They won't even mention the word djinn

because they feel that the djinn derives its energy

from human attention.

If you live in the area

and you see something like this on the road,

you're going to think, djinn.

[throaty screeching]

[yelling]

[static]

[Islamic music]

[Harry] Like many places in the world,

there are people here

who claim to be able to perform black magic.

Could this be some modern day witch

that was disturbed during some secret ritual?

-[speaking in foreign language] -[engine revving]

[Harry] In the Middle East,

fear of black magic practitioners conjuring djinns

to cause supernatural chaos is so strong,

that in 2009,

the Saudi state launched its own anti witchcraft unit

to tackle the problem.

The puritanical police force claimed to catch witches,

often after a tip off from a member of the public.

[Rhonda] In 2011,

a Saudi woman was beheaded for practicing sorcery.

In general, these people who are accused of being witches are not.

They've just been set up by irate neighbors

or implicated in some sting operation.

[Harry] But the authorities report genuine cases

of people who claim to practice black magic.

In one raid, the investigators were confronted

by a naked sorceress.

[woman screaming]

[Harry] The sorceress is said to have escaped out of the window.

Incredibly, investigators report

that she flew out like a bird.

The woman may have been in a trance-like state,

making her feel like she could fly.

[distorted music]

[Harry] Anthropologists have found that sorcerers,

priests and warriors in pre-modern societies

all over the world, can enter a trance-like state

through chanting, dancing or rhythmic drumming.

Some in this state believe themselves

to be possessed by spirits or animals.

And as a result, are capable of extraordinary,

inhuman feats.

Maybe they really do have some power,

some ability that we don't have.

[Harry] A University of Pennsylvania study

found the frontal lobe of the brain,

the part that directs conscious, rational behavior,

diminishes as people enter a trance-like state.

The figure in the footage

could be in a similar psychological state,

advancing aggressively on a vehicle

because she believes herself to be invincible.

The car keeps reversing

and the figure in the footage keeps coming at them.

It won't stop.

[tank fires]

[Harry] Coming up...

Are war survivors attacking travelers

on Jordan's isolated roads?

This highly aggressive behavior

could be a result of some sort of psychosis.

[Harry] And, heading for a beautiful beach,

a titanic tentacle dripping with poison.

[Jayde] Forget about Jaws.

This giant is the new definition

of horror from the deep.

[underwater currents]

[static]

[Harry] Two travelers in Jordan

are attacked by a demonic-looking woman.

-[throaty screeching] -[yelling in foreign language]

-[keyboard clicking] -[Harry] Military historian Craig Gottlieb

believes these robes are the clothes of a Bedouin tribeswoman,

rather than a witch.

And suspects the aggressive physical actions and screaming

could be a reaction to events this woman has witnessed nearby.

This person is definitely exhibiting abnormal psychological behavior,

and one of the root causes of behavior like this

are shocking events in life,

like being subjected to horrors of war, for example.

-[throaty screeching] -[yelling]

This could have something to do

with the decades-long conflict

that this area has experienced.

[tank fires]

[Harry] The Syrian Civil War begins in 2011

in the city of Daraa,

just ten miles away

from the location where this was filmed.

-[tank firing] -[Harry] The entire area

-quickly becomes a brutal conflict zone. -[explosion]

[Harry] Witnesses describe systematic killings,

beatings and torture by the Syrian security forces.

Much of the city is destroyed,

and around 650,000 Syrian refugees

flee across the border into Jordan.

But sounds of artillery fire thudding across the frontier

are a constant, terrifying reminder to those in the refugee camps.

The effects of war can cause

intense psychological damage on normal, ordinary people.

-[throaty screeching] -[yelling in foreign language]

This highly aggressive behavior is very bizarre

and could potentially be

a result of some sort of psychosis.

[Harry] Symptoms of psychosis are varied,

but sufferers could be easily startled or frightened

and can exhibit explosive anger or violence.

[woman screaming]

[Martin] Was this Bedouin woman having a psychotic break down?

And if that's true, there's no telling what she's going to do next.

[Harry] After the men fled,

the figure was never seen again.

Whatever they encountered on that road

has left them with deep scars of their own.

This video is a stark reminder

of horrific things that are lurking in the shadows

when you drive down desolate roads.

[throaty screeching]

[yelling]

[Harry] Now,

the Indian Ocean,

65 miles off the coast of Western Australia.

March 16th, 2020.

A scientific research team

explores the 75-mile-long Cape Range Canyon.

2,000 feet below their vessel,

a submersible scans an area of the ocean never seen before.

Suddenly, the high-definition cameras capture something shocking.

This glowing blue spiral

just sitting there in the dark ocean.

This seems to be a translucent tentacle.

It looks like it's something from another planet.

[Jayde] It's so sinister looking, like it might be

just sitting there, waiting for its prey.

[underwater currents]

[Harry] The sub's camera struggles to fit

the enormous spiral into the frame.

It's really hard to get a sense of scale.

This thing just goes on and on and on.

-[mechanical whirring] -[Harry] Digital analysis

reveals the spiraling entity is over 150 feet long,

more than half a football field in length.

But it isn't a loose undersea cable.

This thing appears to be organic.

[Greg] If this is one big creature,

you know, what does it have to eat to grow this large?

[static]

[Harry] Marine biologist Eric Hovland

wonders if the spiral is the limb of a huge deep sea creature.

It could be a tentacle..

A long, long, swirling tentacle.

Are we looking at the hunting tentacles

of a giant squid?

[Harry] If so,

this is the remains of a true monster of the deep.

The largest giant squid ever recorded by scientists

was almost 43-feet-long

and estimated to weigh nearly a ton.

[Eric] This is a deep sea creature

to be reckoned with.

-[distorted growling] -[Eric] With eight arms,

but also two even longer feeding tentacles

that reach out and grasp their prey with hooked, horny chitinous suckers

-that dig into the flesh of the prey. -[distorted growling]

-[squelch] -[Eric] Once they've got you in those tentacles

and they draw you into those arms, it's curtains.

Sailors have always talked about,

you know, giant squid and it's this

beastly kraken out there in the ocean.

The fishermen would tell tales

of whole ships being dragged down into the deep

by these huge squid.

[distorted wood creaking]

[Harry] Only a few of these deep water monsters have been seen,

washed up on beaches or holed up accidentally in nets.

And there's evidence that there could be

far bigger creatures down there.

Scars on the bodies of sperm whales

suggest ferocious deep ocean battles

with giant squid measuring monstrous proportions.

[Greg] Sperm whales are huge animals,

and by looking at the size of those marks,

we can get an idea of the animal that it's battling.

[Harry] Hovland wonders if the scientists' submersible

has stumbled across the gruesome remains

of one of Planet Earth's most epic battles,

a face-off between an enormous giant squid and a sperm whale.

[Eric] Could that explain what I'm seeing here?

A severed squid tentacle of giant proportions.

[waves crashing]

[Harry] Coming up...

Is this tentacle still alive

and poised to attack?

Imagine getting injected with a chemical

that dissolves you from the inside out.

It'd be a terrible way to go.

[Harry] And, a hairy, square-eyed baby shocks doctors.

Are we looking at a science experiment gone wrong?

[static]

[static]

[Harry] 65 miles off the coast of Australia,

a submersible encounters what looks like a 150-foot-long tentacle.

When marine biologist Greg Szulgit zooms in,

he notices this creepy cable has other, smaller objects hanging off it.

[Greg] I think that

tells us that this is probably a siphonophore.

[Jayde] Forget about Jaws.

This giant is the new definition

of horror from the deep.

[Harry] Most animals grow as a single body.

Siphonophores clone themselves thousands of times

to create a mega monster,

and each clone is given a singular purpose.

Some are digesting, some are moving

and it gives this large sort of super organism

that's absolutely huge.

[Harry] The clones are all strung together

into a chain of death,

working as a team to hunt and feed.

And beneath its frilly fronds, there is a deadly weapon.

Millions of individual dangling fishing lines,

with millions more hooks

all set out as bait.

These fishing lines are bristling with stinging barbs

that are powerful enough to punch through human skin

and deliver a neurotoxin

that can cause paralysis and death.

[Harry] The siphonophore has evolved tricks

to lure creatures to their deaths.

This one has bioluminescence,

drawing light loving animals towards their doom.

[Eric] It's enormous,

swirling, flat, sticky,

like a giant seagoing spider web,

except the spider's built right in.

Because the web is itself the venomous predator.

[Harry] For any creature caught in this deep sea web,

it's not only death they face,

it's an extremely gruesome end.

The way that creatures like this feed

is particularly disgusting.

Once they've paralyzed and killed their prey,

they inject a dissolving chemical

that turns the body of the creature into a kind of soup,

and then they'll suck that soup out

and absorb all the nutrients.

Imagine getting tangled up in one of these

and then injected with a chemical

that dissolves you from the inside out.

It'd be a terrible way to go.

[waves lapping]

[Harry] In January 2019,

over 1000 people were stung

by an enormous swarm of siphonophores off the Australian coast.

[Jayde] I grew up, as an Australian,

fearing getting tangled up in one of those in the ocean.

[Harry] And siphonophores much smaller than this one

have killed humans.

In 1987,

a woman on the Florida coast died in just minutes

after being stung by a siphonophore just 30-feet-long.

The colossal creature in the video

may be 2000-feet-deep, but there is chilling evidence

siphonophores have evolved clones into gasbags,

enabling them to rise to the surface

where prey is more plentiful.

A giant siphonophore

covered in stinging cells and digestive juices

redefines terror of the deep.

[Harry] And a sighting of a massive siphonophore

just 65 miles off the coast of Australia

should make any divers think twice

before taking the plunge.

If it arrived on a beach,

Australia's tourists could be in peril.

If you happen to get ensnared in this thing,

you would die a death of a thousand cuts.

A little part of me, sometimes thinks,

"Maybe the mysteries of the deep are best left alone

when nightmare organisms like this are right around the corner."

[Harry] Now,

Nimodiya,

a tiny village in Rajasthan, northwest India.

January 2020.

[percussion music]

[Harry] An infant is born.

Villagers flock to the house,

not to coo and congratulate,

but to gasp in horror.

Oh. [gasps]

Oh. Oh, my God.

What is this creature?

It looks human.

It's just incredibly hairy.

[Harry] This is no monkey.

I'd say we're looking at a very hairy baby.

[static]

[Harry] Once, all human babies were born this hairy.

The five million hair follicles

that cover our bodies sprouted thick fur like a chimpanzee.

But as we evolved to hunt and run,

cooler bodies became more advantageous

and our body hair thinned.

But not everyone's DNA got the memo.

Jo-Jo the Dog-Faced Boy

earned fame in the 19th century

at P.T. Barnum's The Greatest Show on Earth.

He suffered from excessive hair growth,

a condition now called hypertrichosis,

but it was once known as werewolf syndrome.

And on stage, Jojo was forced to growl,

bear his teeth and even chew raw meat

to the cheers of the audience.

Here in India,

different looking children are not treated as horrors,

but as gods.

An awful lot of the traditional religious figures

are half-animal, half-human.

Think about the god Ganesh, for example,

who is half-elephant.

[Harry] In 2015,

people flocked to worship a child

born with a trunk-like protrusion between her eyes.

They called her Ganesha's wife.

Is it possible that the villagers here,

or the people that live here,

might see this creature as some sort of God

or some sort of higher being?

[Harry] But when biologist Carin Bondar

searches through local records,

she discovers this infant was not born to a human mother.

This baby was born to a goat,

but it does look like a human.

[Ashanti] Its face is quite flat,

it doesn't have a snout.

It has a chin and quite a large forehead.

It should be a goat, but it appears very human.

Why are animals being born with human faces?

[static]

[Harry] Coming up...

Is this new kid on the block

a human-goat hybrid?

I've seen enough movies to know

that scientists should not be splicing DNA.

[Harry] And,

a suburb is shattered by a trucking nightmare.

[explosion]

They say, "Don't shoot the messenger,"

but in this case, it looks like somebody tried to blow them up.

[distant sirens]

[static]

[static]

[Harry] In an Indian village,

a goat is born with a human-looking face.

Could this be a strange mutant crossbreed

between a human and a goat?

[Harry] Visionary author H.G. Wells

wrote The Island of Dr. Moreau

in 1896.

A story about a crazed scientist

creating animal-human hybrids.

[maniacal laughter]

[Harry] Shaena Montanari investigates if someone

is attempting to do the same thing

in this isolated Indian village.

For two species to successfully mate,

they ideally have to have the same number of chromosomes.

For example,

dogs and wolves both have 78 chromosomes,

which means they can cross breed.

[Harry] Crossbreeding humans with other animals

would be incredibly difficult,

as even chimpanzees,

with whom we share 99 percent of our DNA,

have two more chromosomes than we do,

making offspring almost impossible.

Goats would be even less of a match.

Goats have 60 chromosomes and humans have 46.

The difference is just way too big

for goats and humans to naturally hybridize.

[static]

[Harry] Biologist Carin Bondar tries to discover

how the goat ended up looking so human.

The reason this goat looks so strange

is because its eyes are forward-facing,

kind of like a predator's eyes would be.

Goats are generally prey animals,

and so their eyes are on both sides of their head to allow them

to view a lot of the ground around them

-to keep a lookout for predators. -[bleating]

[Harry] Bondar believes the goat is suffering

from a rare deformity.

[Carin] Some mammals experience a condition called holoprosencephaly,

where the two sides of the brain fail to distinguish from each other,

and it results in the eyes appearing far too close together.

[Harry] In extreme circumstances,

this condition can result in a single eye in the middle of the face,

a Cyclops.

Historians have speculated

the legendary creature of Greek mythology

may have been inspired by a similar deformity.

But Ashanti Davis

believes the goat's freakish face

is not just a random mutation.

So there are a number of harmful substances

called teratogens,

and they actually impact the development and growth of a fetus.

[Harry] Montanari studies the area for possible teratogens,

the toxic substances that cause birth defects

and discovers that India's intensive farming could be to blame.

India has a lot of mouths to feed.

It's the second most populous country after China,

and that puts a lot of pressure on farming.

[distant rumble of machinery]

[Shaena] As a result, farmers are overfertilizing their fields

to get maximum crop yields.

[Harry] India spreads 50 million tons of chemical fertilizer

on its crops each year.

The excess nitrogen washes into waterways

and is consumed by local communities.

[Harry] Nitrogen and nitrate chemicals

cause abnormal fetal development,

and in some areas,

they're seeping into the water supply in quantities far beyond safe limits.

It's likely that excess nitrogen levels

caused the birth defect in the goat.

But whatever the goat is exposed to,

so are the people.

In order to try to feed its population better,

India could actually be poisoning them as well.

-[bell chimes] -[Harry] The gruesome-faced goat is cared for

and worshiped as an avatar of the Hindu Gods by the local villagers.

But rather than a God,

it may instead be a prophet of doom,

signifying the potential devastation

chemical fertilizers can inflict on the young.

[Ashanti] Harmful teratogens are closer to home

than we would really like.

The implications for the next generations are catastrophic.

[Harry] Now,

Kansas City, Missouri.

January 23, 2019.

[snow crunching]

[Harry] In a quiet suburb,

a doorbell camera films the snowbound street outside.

So it's a peaceful, pleasant neighborhood.

And all of a sudden, boom.

[explosion]

There's an explosion

right in the middle of the street.

[Harry] Just yards from family homes,

a vehicle mysteriously bursts into flames.

[explosion]

Whoa, this is wild.

It's terrifying how quickly this car just goes up.

It went from nothing to a fireball.

[distant flames billowing]

[Harry] Then the blazing vehicle lurches backwards

and races down the hill towards the houses.

[distant clattering]

It's like a rolling fireball moving down the street.

-[distant clattering] -[distant flames billowing]

The situation is quickly getting out of control.

-[distant clattering] -[distant xpl]

[Harry] This isn't any ordinary vehicle.

Historian Ashanti Davis

analyses the dimensions of the vehicle

and discovers it's a type of truck

seen on every street in America.

The shape and size of this is quite familiar.

It has a very boxy shape and a very distinct nose.

This is a U.S. Postal Service mail truck.

[Harry] Former CIA operative Tracy Walder

believes the raging inferno could be caused

by a type of package you definitely don't want to receive.

All sorts of suspicious things get sent in the mail,

but some of them are deadly.

The initial blast is fast.

This is indicative of an incendiary device, or a bomb.

[Harry] Mail bombs have been sent through the American mail

since 1919,

when anarchists mailed 36 explosive devices

to politicians around the country.

But the threat of death by mail hasn't diminished.

In 2018, a 23-year-old college dropout,

Mark Condit, wages a war of terror on Austin, Texas.

His five homemade package bombs kill two

and injure five more over three weeks.

He's finally identified by a store CCTV camera.

Police pursue him along Interstate 35,

but when he's pulled over,

Condit blows himself up instead of being captured.

[Brian] Just imagine

if the item that caused this explosion

actually was mailed through your door.

[explosion]

[Harry] The threat of death by mail is considered so great,

the U.S. Postal Service employs a full time team

to monitor packages for explosives

and biochemical weapons.

Weird-shaped items,

no return addresses, even misspelled names

are all red flags.

Could this be a letter bomb that has exploded before reaching its target?

[Harry] Coming up...

Reports of mystery fires in America's mail vans.

[Nick] They've occurred in the battery compartment,

in the fuel pump, in the dashboard.

[Harry] And, a pilot films

a weird object from his cockpit.

This is what I would consider a genuine UFO.

There is a flying object here,

and I have no idea what it is.

[Harry] A mail truck spontaneously combusts

on a Kansas City street.

[keyboard clicking]

[Harry] Data scientist Liberty Vittert

isolates and analyzes the audio from the footage

and notices an unusual noise.

Just before the explosion, you can hear a whining sound.

[whining sound]

I think that's the engine revving

or the wheels spinning as the van struggles to get up the snowy street.

[explosion]

Could this explosion be attributed to the van itself?

So something wrong with the design or manufacture.

[Harry] Engineer Nick Householder discovers

that the aging fleet of USPS trucks is obsolete.

[Nick] The Long-Life Vehicle known as the LLV,

was selected in 1987

after a 24,000 mile durability test.

[engine buzzing]

[Harry] These vans help to deliver 48 percent of the world's mail,

over 170 million items of first class mail alone each day.

There are over 140,000 LLVs still in service,

and some are showing their age.

Since 2017,

reports claim over 100 mail trucks have caught on fire

without being involved in a crash.

These fires have occurred in hot climates and in cold climates.

They've occurred in the battery compartment,

in the fuel pump, in the dashboard.

[Harry] This fire was likely caused by tire shrapnel

hitting the engine as the driver tried to accelerate up the snowy hill.

[siren wailing]

[Harry] The mailman escapes unharmed.

When firefighters arrive at the scene in Kansas City,

all they can do is keep the fire away from nearby buildings.

The 30-year-old truck,

and the mail it's carrying, is destroyed.

This gives a whole new meaning to special delivery.

-[wind blowing] -[Harry] Now,

the sky above Colombia, South America.

January 1st, 2020.

[jet engine whirring]

[Harry] Pilot Cesar Murillo Perez,

flying an A320 with a capacity of 180 people,

spies a fast moving object approaching his aircraft.

[Amy] Imagine sitting in a plane

and seeing this weird object

flying towards you at a rapid speed.

It looked like a metallic golf ball

flying through the clouds.

[Harry] It has no propellers, no exhaust, no wings, no tail.

That thing looks like it shouldn't even be able to fly,

but there it is, speeding along at about 30,000 feet.

Passenger planes are supposed to fly

in carefully controlled corridors.

Seeing an object like this outside your window

has got to be shocking.

[Harry] Perez checks his cockpit radar,

but what he sees just deepens the mystery.

[George] It doesn't show up.

It's just a thing that they go flying past.

This is what I would consider a genuine UFO.

There is a flying object here and I have no idea what it is.

[computer mouse clicking]

[Harry] Image analyst Conor McCourt runs the footage

through enhancement software.

What I'm doing here is zooming in and having a good look at this object.

We have one, two, three and four corners.

It's cube like,

it has reflective properties that could be metallic.

They're not seeing wings or other motors

or any kind of mechanical devices

that would propel this through the air.

[Harry] And this is no inflatable balloon.

[Nick] I don't think this is a balloon

because they're usually designed to go to much higher altitudes.

They're more of a teardrop shape

as they're pulling a cargo up into the atmosphere.

There's nothing that indicates that this object should fly.

It should plummet like a stone to the Earth.

[Harry] Coming up...

Is this craft linked to a scientist

who mysteriously disappeared?

[Tim] So she's claiming she could make a gravity force field,

something that the American government wanted to keep as a secret.

-[distorted radio static] -[pilot speaking]

[Harry] A mysterious craft is spotted by an airline pilot

30,000 feet above the skies of Colombia.

Historian Craig Gottlieb finds more reports of flying objects

that like this spinning cube

seem to defy the physics of flight.

In 2017, journalists published leaked footage

captured by Navy pilots

of unidentified aerial phenomena.

[Harry] In 2004,

the USS Nimitz carrier group

patrolling the waters off San Diego,

spots an unidentified object on its radar.

FA 18 super hornets are scrambled to investigate

and what they find is mind boggling.

The pilot reports seeing like a Tic Tac shaped craft

close to the surface of the water.

-[pilot] IHR2, it's following behind, over. -[beeping]

[Paco] Hold it up, It's just hanging there

with no visible means of lift or thrust.

[beeping]

[Paco] If it was a helicopter or an aero type V style jet,

there would just be a massive plume of hot gases

that would be flowing from it.

None of that occurs on this footage.

[Harry] And it pulls maneuvers which would tear a normal airplane apart.

And suddenly it takes off vertically.

[indistinct radio chatter]

-[Craig] Accelerates out. -[indistinct radio chatter]

[Paco] Very quickly. You know, it goes

from zero to whatever,

800 miles an hour or more,

1000 an hour almost instantly.

That G Force would be,

I think fatal to any human.

[beeping]

[Harry] In 2015,

a similar craft is spotted again,

this time, off the east coast of America.

[Tim] What's really interesting is

you can hear the pilots' voice

and they're really surprised.

[pilot 1 speaking]

-[laughter] -[indistinct radio chatter]

[pilot 2 speaking]

[man over radio] Yeah, it's just strafing.

[pilot 1 speaking]

[Harry] The Pentagon confirms the footage is genuine,

but has no explanation for what the object could be.

And if governments are releasing genuine footage of UFOs

and they themselves don't know what it is,

then that's something probably we should worry about.

[Harry] The United States now acknowledges that UFOs

like the one in the footage shot by the Colombian pilot,

exist,

but the notion that they could be alien spacecraft

could be a smokescreen perpetuated by the military.

So some are claiming that Pentagon is creating

this quote "UFO hype"

for a cover story

because they don't want people knowing about their special projects.

[Harry] Special projects that could change life on Earth as we know it.

For years now, there have been theories about

the development of anti-gravity technology.

[Harry] Gravity is an invisible force

that pulls smaller objects towards larger ones.

It's what holds the planets in orbit around the Sun,

and on Earth,

it keeps objects on the ground.

Planes and birds can overcome the force

with lift and thrust.

But ultimately,

what goes up must come down.

But what if it didn't?

Could scientists discover a way

to shield something from the force of gravity?

In other words, an anti-gravity device?

It sounds far-fetched,

but the U.S. military has been seeking to harness anti-gravity technology

for over 70 years.

The implications of anti-gravity technology are enormous.

[Harry] Whole cities could potentially be suspended

in the sky or deep under the sea.

The design and layout of buildings

would alter in unimaginable ways.

I mean, we're talking science fiction stuff here.

[Harry] But spaceflight historian

Amy Shira Teitel has uncovered evidence

that the theoretical world of anti-gravity

is secretly starting to move into practice.

[Amy] In the 1990s,

physicist Ning Li releases work,

saying that she's figured out how to shield the effects of gravity.

[Harry] Dr. Ning Li's theory declared that if a magnetic field

was applied to superconductive ions

trapped in a lattice structure,

they would begin to rapidly spin

and create a gravitational field,

counteracting Earth's gravitational pull.

And so she's claiming

she can make a gravity force field.

[Harry] Anti-Gravity technology would allow craft to move

in previously impossible ways.

They might look like the object filmed

by the pilot flying over Colombia.

In 2001,

Dr. Li receives a half a million dollars from the Pentagon

to further her research.

And in 2003,

she announces a breakthrough.

She had sent an email to her colleague

saying she had demonstrated a large amount of anti-gravity phenomena

and she was excited about it.

So had Ning Li discovered something

that the American government wanted to keep as a secret?

[Antonio] Is that what we're seeing here

is some type of experimental aircraft?

[Harry] If the U.S. government has knowledge

of these gravity defying craft

flying above the skies of the Americas...

[indistinct radio chatter]

[Harry] ...they're not admitting it.

[Tim] This footage is proof

that there's a whole lot more going on in the skies

that we don't know about.