Welcome to our World! Where we serve you cookies to ensure you get the best viewing experience on our site.

Did you know that you can remove censorship board-wide, use our advanced search functions, be notified when new content is posted, join our memberships, set episodes to show in any order you want & more if you are logged into your account?

Register or sign in here: ucp.php?mode=register

01x01 - Revenge of the Zombie k*ller

Episode transcripts for the TV show, "Secrets in the Ice". Aired: August 27, 2020.*
Watch/Buy Amazon


Scientists explore icy mysteries - from mummified bodies in glaciers to a 30,000-year-old virus - while uncovering lost treasures and relics using cutting-edge tech in the frozen regions of the world.

01x01 - Revenge of the Zombie k*ller

Post by bunniefuu »

♪♪

Narrator: The frozen body
of a legendary climber

found on mount everest.

Rose: He didn't pass out.

The rope around his waist
was severed.

Something else happened to him.

Bellinger: When he fell,
was he on his way up

or on his way back down?

The answer to that question
could be monumental.

Narrator: A strange building
in the middle of the ice cap

lies deserted.

O'keefe:
Food lays on the shelves.

Full beer bottles line the bar.

Magazines sit open
on the tables.

Macferrin: It really makes you wonder,
why did the people who were here

have to leave this building
so quickly?

Narrator: And a zombie virus
comes back from its icy grave.

Irving:
So with a discovery like this,

your mind immediately
goes to the worst-case scenario.

It begs the question,
what else might be out there

that we don't know about?

♪♪

Narrator: These are
the strangest mysteries,

trapped in the coldest places.

Lost relics,

forgotten treasures,

dark secrets,

locked in their icy tombs
for ages.

But now as ice melts
around the world,

their stories
will finally be exposed.

[ wind whistling ]

♪♪

Over 26,000 feet
above sea level,

a shocking discovery might mean
rewriting the history books.

Rose: It's the top of the world,
freezing cold,

and utterly breathtaking.

Narrator:
Lying between nepal and tibet,

mount everest attracts roughly


hoping to conquer the peak.

Rose: With temperatures that can
drop to minus-76 degrees fahrenheit,

a thin atmosphere, avalanches,

and the risk of falling to your
death around every corner...

♪♪

...Why would any sane person
want to climb that?

♪♪

Around 2,000 feet
from the summit, expert climbers

come across
a startling discovery...

♪♪

...A mummified corpse.

You've climbed as far away
from human civilization

as you possibly can, and
you look over and see a body.

♪♪

Narrator:
Upon closer inspection,

the body is equipped
with climbing gear

from what looks like the 1920s.

There's no nylon ropes,
no thermal materials.

This guy was dressed in wool,
cotton, and silk.

Narrator: It leaves little doubt
this body is very old.

Could these be
the long-lost remains

of the infamous mountaineer
george mallory?

That's the right era for
the mallory-irvine expedition.

But a lot of people
have died on everest.

Bodies have been found
all over the mountain.

♪♪

Narrator: Englishman george mallory
was one of the very first climbers

to attempt to summit
mount everest in 1921.

♪♪

He tried three times
in two years,

but with no success.

But his tenacity captured
the media's imagination.

He was once asked what made him
want to climb everest,

to which he uttered
the three most famous words

in mountaineering,
"because it's there."

♪♪

On June 8, 1924,

mallory set out from
their final camp

on his fourth
and final summit attempt

with his climbing partner,
andrew irvine.

Rose: The pair were last seen


And after that...

They were never seen again.

♪♪

Narrator: Speculation about
what happened to him

has plagued the climbing world
ever since.

Could his remains have finally
surfaced after all these years?

♪♪

Expedition members examine
the body looking for clues

due to the cold, thin
atmosphere, it's well preserved.

He's lying face-down,
and they note

that he still has his climbing
rope around his waist.

♪♪

Then they find the smoking g*n
they've been looking for.

Inside the preserved clothes
of the mysterious climber,

they find a label,
and it reads...

George mallory.

It's definitive.

It took 75 years
to find mallory's remains.

And they were found so close
to the top of the mountain.

♪♪

What exactly happened
to george mallory?

♪♪

The answer to that question
could be monumental.

♪♪

Narrator: There's a name for
the highest part of everest...

The death zone.

♪♪

Up here, oxygen is so limited,

your body's cells start to die.

♪♪

Judgment becomes impaired.

♪♪

You can experience
severe altitude sickness,

strokes, or even heart attacks.

Did mallory die
from lack of oxygen

before reaching the top
of the mountain?

♪♪

Billson:
Mallory was an expert climber

and was on the very first
british expedition

to the mountain in 1921.

♪♪

He was well aware of the risks
at that high altitude.

♪♪

Narrator: But even experienced
climbers can succumb

to the tallest mountain
in the world.

♪♪

Avalanches are frequent
on everest.

Could mallory have been caught
in a fatal slide?

♪♪

Most victims of avalanches
survive the slide,

but die of suffocation.

They are literally buried alive.

But even under the mass of snow
in the dark,

struggling to stay conscious,
you dig, thrash,

fight, flail,
anything to get free.

Mallory was lying flat,
face-down,

almost calm.

There is no sign of struggle,
digging, or asphyxiation.

This wasn't an avalanche.

♪♪

Narrator:
Altitude can cause another risk

beyond lack of oxygen
and the cold.

We're talking about
mountain climbing here.

Falling is clearly
a very common way to die.

♪♪

Narrator: Mallory and irvine
would have been tied together

by a rope around the waist
as a safety measure.

That way, if one falls,
the other will catch him.

♪♪

Mallory's body does show
a serious rope-jerk injury

around the waist,
and his leg was fractured,

both indications of a fall.

♪♪

But one thing
just doesn't add up...

An odd puncture wound
on mallory's forehead.

♪♪

It's very unlikely
that a wound like that

was caused by a rock or a fall.

Narrator:
So what caused this wound?

Rose: The wound looks like
it could have been caused

by the head of an ice ax.

So, if a climber's falling,

they could use their ice ax
to slow the descent.

But if they hit a rock,
it would deflect back

and then, whack,
hit him right in the head.

Mallory's ice ax
was never found,

but his climbing partner's was.

Irvine's ice ax
was found farther up

than mallory's body...

♪♪

...Implying the two men
could have been even higher

when they fell.

♪♪

When he fell,
was he on his way up

or on his way back down?

Narrator: If researchers
can answer this question,

it could settle a controversy

that has dominated the climbing
world for almost a century.

In 1953, 29 years after
george mallory went missing,

another pair of climbers
were officially credited

with being the first
to summit everest...

Sir edmund hillary,
and his sherpa, tenzing norgay.

♪♪

Could it be that mallory
made it to the top

almost three decades
before hillary?

♪♪

Bellinger: We might have to
rewrite the history books

on who conquered everest first.

♪♪

Narrator: Expedition members
are searching for evidence

that may prove george mallory
was the first person

to summit everest
and not sir edmund hillary.

♪♪

The team turns to mallory's
family members

for more information,

and they immediately
reveal another clue.

Billson:
According to mallory's daughter,

her father always carried
a picture of his wife,

which he intended to leave
at the top of everest

after he'd reached the summit.

Rose: The body was
in pristine condition.

He even had his wallet
with a letter and a receipt

from a climbing outfitter,
but no photo.

♪♪

Bellinger: Where's the photo?

Was george mallory
true to his word?

Did he leave the photo of
his wife at the top of everest?

♪♪

Narrator: They don't find the
photo, but during the search,

someone notices
something very odd.

Mallory wasn't
wearing his goggles,

and they weren't
around his neck.

Narrator: No climber would ever
attempt to summit mount everest

without goggles,

even back in 1924.

Sun glaring off the snow and ice
can cause snow blindness,

which can be lethal
at this altitude.

Just days before mallory
made his ascent,

another climber was blinded

because he wasn't
wearing goggles.

There is no way that mallory
would have been ascending

without wearing his goggles.

♪♪

Narrator:
After a thorough search,

the team eventually
find his goggles

buried deep
in one of his pockets.

Why wasn't he wearing them?

♪♪

Rose: The most convincing reason
is if it was after dark

and he was already on his way
back down the mountain.

Bellinger:
But if he was coming down,

then coming down from where?

Did mallory make it
all the way to the top,

or did he turn back just a few
hundred feet before his goal?

Narrator: Mallory left on his
expedition with a camera in his kit.

If the camera can be located,

it could provide evidence
to settle the question

of whether he made it to the top
once and for all.

You wouldn't carry a camera
all that way

and not take a photo
on top of the mountain.

Billson: With the temperature
up there always below zero,

there's a really strong chance
to film inside the camera

would be preserved, as well.

Rose: If we could only develop
that last roll of film,

maybe we could see
if mallory reached the top.

Photographic evidence
would be definitive proof.

But where is that camera?

♪♪

Bellinger:
His body was undisturbed.

He had his wallet.
He had his altimeter.

He had his goggles.

The camera must be out there.

We just haven't found it.

Narrator: Without it,
there's no way to know for sure

if mallory made it to the top.

♪♪

Wolf: If mallory didn't
make it to the top,

he was at least
close enough to see it.

Either way, it's an astounding
accomplishment.

Narrator: Lost somewhere
just below the peak

of the highest mountain
on the planet

lies a camera
that could contain a photograph

that could rewrite history.

But that secret still remains
buried somewhere in the ice.

♪♪

♪♪

In the uninhabited subzero
environment of greenland,

rising out of the ice and snow,

an unusual building
lays abandoned.

Somara: This is a really
strange structure.

It's all made of steel.

It has a giant sphere on top

and similar round features
on its sides.

♪♪

Macferrin:
To see this huge building

sticking out in the middle
of a vast white ice sheet,

it really reminds you

of a supervillain base
from a james bond movie.

Inside is even stranger.

Food lays on the shelves.

Full beer bottles line the bar.

♪♪

Magazines sit open on the tables
as if they were being read.

The place was abandoned so fast

that they left eggs
on the counter.

People didn't just leave
this place. They fled.

♪♪

It really makes you wonder,
why did the people who were here

have to leave this building
so quickly?

Narrator: This is a dew line station,
short for distant early warning,

one of a series of far north
radar stations.

♪♪

During the cold w*r,
threat of nuclear retaliation

maintained an uneasy balance
between the usa and ussr.

♪♪

Both countries feared

that the other would launch
their nuclear missiles first,

wiping out their defenses.

♪♪

The dew line
was america's attempt

to thwart a first nuclear strike

which would have been delivered
by russian bombers.

♪♪

Macferrin: The main purpose
of the station was to monitor

for incoming aircraft
or missiles

that might come over
the poles from russia.

♪♪

They also listened
for radio transmissions

that they might be able
to intercept from the enemy.

♪♪

Narrator: The dew line consisted
of more than 60 radar stations

stretching across the top part
of the north american continent,

from alaska to greenland,

some of them fully manned
with military personnel,

ready to respond
at a moment's notice.

♪♪

So what could have happened here
that would have caused

these soldiers to flee before
even finishing their meals?

♪♪

For the most part,
the structure is in great shape.

If you've got the power
up and running,

and some heat in there,

you could easily move back
into the base.

♪♪

Narrator: There is one room that
appears to have been breached,

filling the corridor with snow.

Billson: That's strange.

This building was built by
the military and built to last.

Maybe the building
did suffer some damage.

♪♪

Narrator: Could the building
and its crew have sustained

some sort
of secret military strike?

♪♪

In 1981, russia became
increasingly convinced

of an imminent attack
from the united states.

In response, the chairman
of the kgb, yuri andropov,

and general secretary of
the soviet union leonid brezhnev

launched the largest-ever soviet
intelligence-gathering campaign.

It was called operation ryan.

It was an acronym which,
when translated from russian,

literally meant
"nuclear m*ssile attack."

♪♪

O'keefe: You know, for any
soviet strike to be successful,

they would have
to find a way to avoid

or, better yet, remove
the early warning system.

♪♪

Narrator: And isolated dew
station in a remote part of greenland

would have been
a perfect target.

♪♪

Was this station a victim
of soviet espionage?

♪♪

Narrator: A united states
military radar station

in the far north of greenland

is found mysteriously
and suddenly abandoned.

♪♪

There aren't many reasons

that armed forces
evacuate a building so quickly.

♪♪

Could they have fled
to soviet attack?

There are no signs
of explosions or weapons damage

to the outside of the building.

Macferrin: There's no
gaping holes in the roof,

but there are some doors
that are left cracked open

and some windows
that have broken.

Any gap in the building
over 30 years

will let the snow right in.

Also, there are
no shell casings anywhere.

These men would have been well
trained military personnel,

but they fled
without firing a shot.

♪♪

Narrator: None of the evidence
points to a physical attack.

Some wonder if the base
could have been decimated

by something less calculated
but just as deadly.

♪♪

Wolf: So if it wasn't
a manmade disaster,

then maybe a natural disaster
hit the base.

♪♪

Somara: This station
was built to withstand

the extreme weather
of greenland.

It's a steel structure,

and it's still standing
after decades abandoned.

Narrator: The answer
may lie in the design

of the building itself.

Engineers built the station
on eight steel beams

for a very specific reason.

In this part of
the greenland ice sheet,

snow builds up
year after year after year.

And anything you leave
on the surface

is going to get
buried over time.

So to keep this
above the surface,

they kept having to jack it up
on these enormous stilts

time and time again.

♪♪

Narrator: Between 1959 and 1983,

engineers raised the station


♪♪

But each time they jacked it up,

they made it
slightly less stable.

Macferrin: So these enormous "I"
beams that the building sits upon

are sunk into the snow.
And snow settles over the time,

and it doesn't
necessarily settle evenly.

♪♪

Narrator:
But the "I" beams alone

weren't responsible
for the abandonment of the base.

It was the combination
of a second design flaw

that sealed
the dew line station's fate.

Macferrin: So, when
they designed the building,

they put this enormous
snow melting furnace

in a corner of it
in order to melt snow

for drinking water
and showers for all the men.

♪♪

What they didn't anticipate
is that the heat from this

would dissipate
into the "I" beams

and cause that corner
of the building

to settle faster
than the others over time.

♪♪

Somara: The weight
and the heat of the building

have pushed the foundation
to the edge of failure.

It could collapse at any moment.

The station had
become a deathtrap.

Billson: The building was not
under attack from a military force,

but from the very ice
it was built on.

♪♪

Narrator: When military
engineers realized this,

they ordered
an immediate evacuation.

[ siren wailing ]

♪♪

Afterwards, they even tried
to re-level it.

But all efforts failed.

The base was lost.

♪♪

With advances in radar
technology, satellites,

and icbms,
early warning stations

became a thing of the past.

Narrator: Now the giant
icy monolith sits frozen,

a relic of the cold w*r,

abandoned to the ice.

♪♪

♪♪

About 100 miles from
the east coast of scotland

lies one of the ocean's
strangest mysteries.

A controversial new theory

involving ancient
ice age formations

may offer an unexpected answer.

♪♪

Rose: When you look at it, you
just scratch your head, thinking,

"how could this possibly
have happened?"

♪♪

Narrator:
On the bottom of the ocean,

a fishing trawler rests
completely undamaged.

♪♪

Rose: What causes a ship
in perfect condition

with no evidence of damage

to end up
at the bottom of the ocean?

♪♪

Narrator: Stranger still, it's
sitting in the middle of a crater

more than 300 feet in diameter.

♪♪

Fishermen call this area
the witch's ground

because the bottom is so rough,
it eats up their gear.

♪♪

But the fishing is so good,

many crews
take their chances anyway.

♪♪

Irving: On the seabed
in the witch's ground

is a crater
they call the witch's hole.

♪♪

Narrator: The crater measures


And the boat
is sitting dead center.

There's something odd
about the way it's resting.

Somara:
The trawler is perfectly intact.

It's resting delicately
on its keel,

as if someone placed it there.

If the ship hit a rock
or some other object,

that would sink it.

But the trawler has
no signs of damage.

The hull is in perfect shape.

♪♪

Narrator: If it's unlikely
a leak took this ship down,

could it have been swamped
by a rogue wave?

♪♪

Narrator: What appears to be
a seaworthy fishing trawler

found at the bottom of the ocean
in the middle of a crater

raises questions about
how it got there.

♪♪

Did a natural disaster at sea
take it down?

♪♪

Irving:
Severe weather, intense winds,

big waves...

Any of these things
could knock over a ship.

♪♪

If a vessel was hit broadside
by a large wave or swell,

it could roll.

♪♪

In extreme cases,

really big waves
could pitchpole a vessel.

♪♪

♪♪

Narrator: But when investigators
examine the wreck,

they realize it's improbable

that a violent storm
sank this ship.

All the fishing gear is laid out

like the ship is ready
to go to work.

It's eerily calm.

When a ship capsizes, most often
you'd see damage on the deck,

but on this trawler,
you see no sign of that.

♪♪

What on earth caused
this ship to sink?

♪♪

It's like some unseen hand
reached up from the depths

and pulled the ship
to the bottom

right in the middle
of the crater.

♪♪

Narrator:
Perhaps the clue to this mystery

lies in the crater itself.

Hundreds of miles away in the
icy waters of the barents sea,

investigators discover
a slew of craters

just like the one
that contains the trawler.

♪♪

Macferrin: When they surveyed
the floor of the barents sea,

they found this enormous
network of craters,

some of them up to 1/2 mile wide
and 100 feet deep

covering the ocean floor.

♪♪

Narrator: What powerful force
caused these craters?

♪♪

The answer could hold the key
to unlocking the mystery

behind the sunken
fishing trawler.

♪♪

Could the craters have been
caused by asteroids?

♪♪

Irving: These don't look like
asteroid strikes.

There are very few
impact craters

that have been discovered
in the ocean

because the sea floor changes
so rapidly.

These ones are
too small, too new,

and there are too many of them.

Rose: Plus, an asteroid
or anything coming from above

would destroy a ship
on the surface,

not place it gently
on the bottom.

Asteroids certainly don't
help us with this mystery.

♪♪

Irving: So if these craters were not
caused by something from above,

maybe something from below.

Narrator:
It's a controversial theory,

but some wonder
if they were caused

by underwater gas-filled pingos.

Macferrin: A pingo is formed
from pressure underneath the earth,

either from ice
that's shifting together

or from bubbles
forming under the surface

that raises the ground
around it.

♪♪

Narrator: They are essentially
big domes of methane gas

trapped under the sea floor.

And they're like
a ticking time b*mb.

♪♪

Somara: After years of
withstanding pressure,

these pingos eventually pop,
forming craters 1/2 mile across.

♪♪

Rose: Imagine
this would have been like

the earth making a massive burp.

♪♪

Somara: Could a sudden release
of methane gas from the seabed

sink a ship
on the surface above?

♪♪

Narrator: Deep within the waters
of the north sea

lies a fishing trawler
in the middle of a crater.

♪♪

Investigators wonder if a sudden
violent eruption of methane gas

was behind
its mysterious sinking.

♪♪

It's not the first time methane
has caused disasters at sea.

♪♪

There's even a case
of a drill ship

becoming destabilized
because of methane.

♪♪

A ruptured methane pocket
sent an immense amount of gas

violently bubbling
to the surface.

It almost sank the entire rig.

♪♪

Narrator: Did the fishing
trawler in the north sea

fall victim to the same fate?

Could gas bubbles really have
taken down an entire ship?

♪♪

Methane gas bubbling up
from the seabed

reduces the density of water.

♪♪

The theory is, without enough
density to hold up the vessel,

ships caught in the area would
no longer be able to float.

♪♪

The methane gas goes up,
and the ship

in perfect condition
sinks to the bottom.

♪♪

Irving: As strange as it seems,
a methane release

could be a plausible explanation

for what we see
in the witch's hole.

A small vessel like that trawler

could have been overwhelmed
much more easily.

♪♪

The crew onboard could have
been completely caught off-guard

and would have had
no time to react.

♪♪

This is only one theory.
There are plenty of other things

that could have happened
to the boat,

but it's certainly
the most intriguing.

♪♪

Narrator: It's true.

The boat may have sunk
for any number of reasons,

and it might be pure coincidence

that it landed perfectly
in the middle of the crater.

But it is possible
that by astronomical chance,

the trawler may have found
itself directly above

a sudden release of gas.

And the freak accident caused
the ship to sink gently down

into the middle of the crater
directly below it.

♪♪

♪♪

In the farthest reaches
of northern siberia,

a team of russian
and french scientists

make a chilling discovery.

♪♪

Deep in the frozen ground,

they find
a 30,000-year-old virus

lying in a state of dormancy.

You look at it, and you think,
how could anything survive

in frozen ground for this long?

♪♪

Poinar:
It begs the question,

what else might be out there
that we don't know about?

Narrator: The ancient strain
is called mollivirus sibericum,

or giant virus,

because it's 1,000 times
as big as a normal one.

Irving:
So, with a discovery like this,

your mind immediately
goes to the worst-case scenario.

What if an ancient
human pathogen like a virus

or a bacterium thaws out
and wakes up?

Narrator:
And if it does, can it harm us?

Poinar: When a virus infects the
body and under the right conditions,

viruses will multiply.

That's basically
how we become sick.

They overwhelm our body's
defense mechanisms,

and they're especially dangerous

to populations who've never been
exposed to them before.

♪♪

Narrator: When smallpox
first arrived in the americas,

it annihilated
indigenous populations

because they had almost
no immunity against the virus.

The pain and suffering it caused
was indescribable.

Entire communities
were completely destroyed.

♪♪

It's for this reason

that scientists need to test
whether it's possible

to reactivate
the dormant mollivirus.

If they can, does that mean
other ancient zombie viruses

could wake up
and wipe us all out?

♪♪

Narrator: A 30,000-year-old
giant virus strain

is found in the frozen ground
of russian siberia.

♪♪

Scientists want to see if
they can bring it back to life.

Some worry that
if they're successful,

we might all be in trouble.

It's not inconceivable
that you could

bring something like this
back to life.

There are pathogens
that have been frozen

and come back to life.

♪♪

Narrator: In 2016,
in russia's yamal peninsula,

an unprecedented heat wave

rapidly thawed
the frozen tundra.

All of a sudden,

wild animals started dying
in massive numbers.

♪♪

Irving:
In a short space of time,

more than 2,000
reindeer drop dead.

♪♪

Narrator: Locals from the area
were understandably concerned.

But when the people themselves
started getting sick,

concern turned to terror.

♪♪

This went undiagnosed
for several weeks

until a 12-year-old boy died,
and people began to panic.

♪♪

Narrator:
The cause of the deadly illness

was eventually traced
to a strain of anthrax

that had lain dormant

in the corpses
of long-dead reindeer

buried in the permafrost.

When the corpses thawed
in the heat wave,

the reawakened spores were
released into the atmosphere

infecting the local
reindeer population.

It didn't take too long
before the bacteria spread

from the reindeer to humans.

♪♪

And this isn't an isolated case.

In 2017, a young man
on the northern coast of alaska

was helping excavate
an 800-year-old hunting shack.

In the process, he unwittingly
disturbed seal remains

that had been preserved
in the permafrost for years.

Irving: Initially, he didn't
think anything of it.

But shortly after he went home,

he discovered a red dot
on his leg.

Within a few days, that dot grew
to the size of a softball.

Narrator: He had an infection
called seal finger,

which he'd caught
from the dead seals.

Luckily, doctors identified it
quickly enough

and were able to treat
the infection with antibiotics.

♪♪

It's one thing
for a relatively young bacteria

like seal finger or anthrax
to reawaken,

but the mollivirus has been in
the permafrost for 30,000 years.

Does it have the strength
to come back from the dead?

Poinar:
This is a critical question.

If the answer is yes,

does that mean that smallpox
or plague or spanish flu

could actually come back?

♪♪

It's a terrifying thought.

What if all the graves

of people who died
of one plague or another

began to thaw like the reindeer

and suddenly awakened
every deadly disease

our civilization has ever known?

Irving: Not only could
known pathogens come back,

the same theory could apply
to the ones we don't know about,

including those that
have been long extinct.

Narrator: Scientists set about
trying to resurrect mollivirus

in the laboratory,
knowing full well

how monumental the results
could be to the human race.

Irving:
The virus needs a host cell,

so they gave it
its favorite meal, an amoeba,

a single-celled organism.

They put them both
in the dish, and they waited.

Macferrin:
One of the biggest challenges

of bringing something
like this back to life

is how old it is.
It breaks down over time,

and it might not even
be possible

if the dna
is completely broken down.

Narrator: To everyone's
surprise, the experiment worked.

The mollivirus invaded the
amoeba and replicated itself.

After 30,000 years,
the giant virus was reborn.

Viruses have been known
to survive

in some pretty tough conditions.

But that's a pretty
amazing feat.

♪♪

Narrator: Scientists are now
forced to consider an ominous idea.

Does this mean
that viruses in the wild

could come back to life
by themselves?

Irving: The virus that was
reawakened was grown in a laboratory,

an ideal environment.

We can't say it would be able
to do the same in the wild,

but if the environmental
conditions were right,

it's a possibility.

The biomass of all viruses
and bacteria frozen in the ice

is 1,000 times
that of all the humans on earth.

Most of these viruses
and bacteria

aren't going to harm us,
but some could.

What if one of these pathogens
thaws out of the permafrost

and is washed into a river

and then ultimately
down into the ocean?

Narrator: Scientists continue to
keep a watchful eye on the ice,

mindful that the world's
thawing ice

could allow ancient microbial
genes to mix with modern ones...

♪♪

...Flooding the oceans

with never-before-seen
types of organisms.

How would it interact
with the food chain?

What would be the impact
on the environment

and ultimately on us?

We don't know the answers
to these questions.

Hopefully, we'll never
have to find out.