Original subtitles

April

1944 in the South Pacific an American

submarine considers a deadly Showdown

with an enemy

[Music]

warship a Japanese Destroyer closes in

on USS

harder Skipper Sam Dy must choose to

dive

or

fight normally submarines avoid

destroyers and other escorts cuz they're

designed to kill submarines by taking on

a destroyer 101 you are in fact taking

on the toughest game with the Japanese

still occupying great swaths of the

Pacific the Allies use submarines to

subvert their control de proves

Relentless in bold attacks during daring

patrols leading USS harder and its crew

into glory and peril

in World War

II subc weapon allows Warriors to fight

from beneath the waves with cunning

force and tenacity their enemies Strike

Back revolutionary but still sometimes

primitive it's a desperate

bid to change the course of

War their story

our

Legend on April 13th

1944 Commander Sam Dy and his crew face

a Japanese destroyer in the South

Pacific in three War patrols they have

already sunk 10 Japanese Merchant ships

but they have never beaten a destroyer a

type of Warship that carries depth

charges de charges are synical canisters

about two and a half feet they're

triggered by an orice that that allows

sea water to come in so that when a

certain amount of sea water actually

gets in it triggers the de charge to

explode packed with up to 325 lb of

explosives they're rigged to sink

submarines just before 700 p.m. D

decides to attack instead of evade the

Destroyer ready tube tube two ready fire

tube on the

way at some point he realized that when

he was being pursued by destroyers

instead of waiting for them to death

charge him he could shoot back standby

three fire three three on the

way a bubble trail from D steam powered

Torpedoes will give away harder's

location fire if the offensive fails the

Destroyer will know exactly where to

find them

[Music]

harder Skipper sinks the escort before

it can drop a single

bomb more than 2 years into the Pacific

War only 14 Japanese destroyers have

been sunk by American

submarines D joins an elite group of

Submarine officers daring enough to

accomplish this exclusive

feat the success emboldens him

Commander Sam Dy is a calm professional

and reserved naval officer however In

the Heat of a battle he turns out to be

very very aggressive in a way that many

had not

foreseen the 37-year-old de has

commanded USS harder since it was

commissioned in

1942 the soft spoken Skipper comes from

an upper crust Texas family usually

officers from those kind of families

didn't go to submarines submarines were

associated with career path in the Navy

that really didn't go very far like

aviation in the near War years it was

seen as a negative so for him to take

that path says a lot about him as an

individual you have to understand there

were people that that you would meet

that would seem to be the quietest

cautious types then you find out they

were completely crazy and they would do

things that that would be absolutely

terrifying for deal the the easy

solution isn't necessarily the best

solution could he back out of an attack

back yes however it would also go

against his

nature de and the crew of USS harder and

their patrol in freem manle

Australia freemantle became an Allied

subbase after another Japanese assault

only 2 months after Pearl

Harbor in February

1942 the island of java fell in a fiery

campaign and sent the American station

there into a panic

retreat they scuttled military assets

like the warship USS Stewart dry do for

repairs when the Japanese struck the

Destroyer fell into enemy

hands the Japanese empire reaches a

Zenith stretched out over about 20

million square miles in seven times so

it's huge it's held together over

millions of miles of sea lanes and open

ocean there were an island nation who

depended on this Maritime Highway uh to

move all their goods around they had to

import almost everything they needed

including rice and that was especially

cute when it came down to war materials

particularly oil which is a precious

fuel source for battleships bombers

Fighters everything the massive but

far-flung Empire is also a

weakness in early

1944 American submarines in Australia

are commanded by rear Admiral Ralph

Waldo

Christie Christy's silent Hunters Target

Japanese ships hauling Goods to sustain

the Pacific War

Allied operatives planted throughout the

Japanese empire spy on shipping and

collect intelligence that helps chrisy

assign his

submarines the advantages of having

agents assure were enormous the

Australians had Coast Watchers the

Japanese would Steam down the coast and

they would

reported by May

1944 one of these operations takes an

alarming

turn Australian Commandos spying and

occupied Borneo are betrayed to Japan's

Infamous military police the kempe

[Music]

Thai three have already been

captured six more hide in the northern

jungles hunted by hundreds of

troops Australian Special Forces request

assistance to recover the Commandos now

running low on supplies

the plan requires a submarine to sneak

into enemy Waters and rescue the

operatives before the Japanese find

[Music]

them harter's fifth Patrol will include

an attempt to rescue the Australian

Commandos

[Music]

the jungles of Boral lie thousands of

miles north of

freem harter's G Class build is

engineered to make the longdistance

run it's got the ability to go huge

distances be on patrol for a couple

months and then come back it could carry

a fairly Hefty load of torpedoes and

also the food and Logistics that you

need to keep a crew going for that

length of time

before harder leaves freemantle Dy

welcomes a special

passenger Australian operative major

Bill Jenkins already an escape prisoner

of war he's committed to defeating the

Japanese his first step is to coordinate

the rescue of his besieged comrades the

assignment will not be jenkin's first

mission aboard a submarine it takes a

little bit of a different type to go

into the submarine service you know it's

a very austere environment you're living

on top of men and bunks you can go weeks

even months without seeing

daylight a submarine can be extremely

bizarre for most people creepy for

others the Hall of course as it's diving

is going to Creak and stress under de

pressure but you also have the sound of

water rushing into the ballast tanks on

both sides air rushing out you have the

bow going down and the stern going up

it's a bizarre

feeling with the confined space and

eeriness of the submerged

environment Jenkin signs on for all of

the risks of a submarine on active

Patrol in addition to the rescue attempt

the sub will continue with its regular

operations 22% of America's silent

service are killed at Sea the highest

casualty rate of any arm of the US

Military

even if the rescue is a

success it may only take the Commandos

out of the Jungle and put them squarely

in the line of

fire on May 26

1944 USS harder leaves freem manle

Australia

among the Personnel now aboard is

Australian operative Bill

Jenkins he quickly volunteers to stand

watch on the deck and becomes an

accepted member of the

[Music]

crew they enjoy their share of Creature

Comforts American submarines boast air

conditioning a critical perk in the heat

and humidity of the South

Pacific you're in a submarine and you're

there for 75

days how well you feel determines how

well you'll fight a lot of things that

feel like luxuries really are things

that make it better for you to fight in

the

[Music]

end D's earlier defeat of a Japanese

Destroyer proved he can be

aggressive but this Mission will also

require stealth

the waters that surround Northern Borneo

are guarded by one of Japan's largest

Naval bases ta tawi harder patrols alone

with only 24

Torpedoes in

1944 it takes American Skippers an

average of 10 Torpedoes to sink one

ship against a single Destroyer Dilly

stood a chance against a fleet of

Warships aggression would be

[Music]

suicide just after 6:30 p.m. the crew

spots the first threat to their

mission three tankers head to a port on

the east coast of Borneo to pick up

fuel they're escorted by two Japanese

destroyers quick and highly maneuverable

Japan relies on these escorts and their

underwater bombs to protect against

enemy submarines submarines are uniquely

vulnerable to attacks not only are they

at risk of damage for instance from a

depth charge but of all that pressure

from the seawater pushing in on them can

uh can lead to

collapses the problem with the Japanese

was that they didn't know the depths of

where the American submarines were so

they generally assume it is shallow and

so they would set their depth Chargers

to hit rather high in the water

triggering their underwater bombs to

explode at around 150

ft the American submarine captains knew

this and so they would dive under and be

safe that Advantage was shattered 19

months into the war when American

Congressman Andrew Jackson May held a

press conference unfortunately us

politician who came back from the Far

East boasted that our submarines were

safe because the Japanese death charges

were set too shallow this was not really

helpful and the Navy was

Furious the Japanese picked this

information up and quickly retool their

depth charges so that it would go down

farther and as a result a number of

American submarines were sunk so by June

of 1944 deely risks deep set death

charges every time he evades his G Class

submarine the gor class by 1944 isn't

obsolete however it is not as up to dat

as the bow class for the G Class with a

maximum dive depth of about 300 to 350

ft they don't have that extra 100 ft of

depth to be able to maneuver in it also

means they're more likely to be detected

and

caught at 9:25 PM one of two destroyers

escorting the three tanker Convoy spots

USS harder on the

surface the warship is the mitsuki a

mitsuki class destroyer designed to

travel at up to 30 7 knots the escort

can speed nearly twice as fast as D

submarine even on the

surface D tries out running it but hard

as phosphorescent wake illuminates a

path to their

position Dilly drops to Periscope death

to hide from the escort

but sharp eyed Lookouts track the

periscopes

Wake the Destroyer turns to intercept

USS harder it's 1100 yd away and closing

with a submarine your only protection is

your invisibility the cloak of

invisibility if you like as long as that

works you're okay if they can see you

you're dead D's only chance to thwart

the escort's depth charges is to attack

first speak speed 34 knots speed 34

knots driven by his earlier success he

prepares to attack an enemy Destroyer

again deily orders full R report or left

towards the destroyer's

profile fire

fires three Torpedoes to Target the

widest area of the ship

possible if they Miss D will have to

dive to avoid the rain of depth

charges D's Torpedoes close

in one strikes its bow a second breaks

the ship

spine depth charges on the deck explode

in the

Flames less than a minute after the

torpedo strike the Destroyer starts to

[Music]

list Dy brings the sub to the surface

about a, yards away to confirm the

[Music]

kill he invites Jenkins and other crew

to the bridge to

watch and minuki and its dep charges

slip beneath the

[Music]

waves de has sunk the second destroyer

of his career D's contribution is to go

after destroyers and Sh and work and he

sinks a lot of Destroyers that way not

only does he sink a lot of them but he

probably inspires his fellow officers to

think this is not a bad idea that's what

Sam de does and very

successfully despite the commando's

awaiting rescue D is not finished with

the

Convoy within minutes the sub detects

another ship only 14400 yd

away USS harder is forced to dive again

June 6th

1944

France the Allies land on the beaches of

Normandy hoping to turn the tide of the

European

war in the

Pacific an American submarine has just

sunk a Japanese Destroyer near Northern

Borneo and now pursues the Convoy at

Garden a second Destroyer prows near

Japan's Naval obas tawi tawi seeking

revenge on the American

sub using active sonar the Destroyer

sends pings of high frequency sound into

the

ocean if the Japanese crew hear the echo

bounce off the submarine they can

estimate its location and relative

distance when the enemy ship is close

enough the sound even penetrates the

hull of the

sub USS harders Hunter is almost

certainly an akazuki class destroyer the

Apex of Japan's World War II escort

design the akazuki carry up to 72 depth

charges to kill

submarines D works the attack Periscope

in a bid to take the

offensive but intermittent clouds block

the Moonlight and help cloak his

Target as the Destroyer approaches

headon harder does not have the

advantage of attacking the

broadside D must Target the bow which is

only a tenth as

wide it's a down the throat shot he's

heading right for a

scope stand by Two Fire two two on the

way fire six Torpedoes gambling one will

St strike the escort head

on this is before homing Torpedoes he's

just firing a bullet basically at this

narrow thing coming at him but this time

D's aggressive gamble

fails all six of his Torpedoes Miss take

her deep rig for depth charge harder

Skipper has run out of offensive choices

he moves quickly to the defense

[Music]

as the submarine plunges the crew can

only wait for the enemy's depth charges

to begin detonating

you have to imagine the worst possible

experience the sound of the dep charge

reverberating through the water the

shock impact on the hall the shaking of

the hall and what that does inside the

hall is absolutely terrifying you're

inundated with noise you're inundated

with the feeling of motion random motion

but also with anything in the

compartment flying around and

potentially hitting you Darkness cuz

light bulbs tend to burst it's pretty

horrendous

harder races to its maximum depth to

outrun The destroyer's

Barrage as the dive nears 300 ft the

crew expects the submarine to level

off the goal is to equalize hardest

buoyancy with water then level it with

its Stern planes a pair of rudders that

control the angle of the

submarine but in the control room a very

green plesman he is in the the stern

plane position so he's controlling the

planes at the back of the boat he pushed

the plane in the wrong direction he

raises the stern of the submarine in

essence driving the boat deeper a

mistake very human mistake under the

stress of combat the sound of depth

charges all of that human mistake

extremely dangerous people on Subs being

trained one of the things that they have

to learn is what is and is not dangerous

people who are completely new don't get

it they don't get it until they've

experienced

it you're now pushing the submarine

closer to crush depth if you don't

recover fast enough you could lose a

submarine the diving officer rushes to

correct the

mistake non-essential crew charge to the

rear of the submarine to manually

redistribute the

weight and a desperate bid to bring the

bow out of its

[Music]

dive they managed to level the sub

but the uncontrolled descent has caused

another problem one of the torpedos in

the tubes has started a hot

run its propeller spins as if it's been

launched you got a torpedo sitting in

the tube the torpedo gets shaken enough

that it starts up that's very dangerous

if it keeps spinning Dilly submarine

could be sunk by its own

Warhead in the South

Pacific World War II two submarines

Under

Siege a Japanese Destroyer launches

underwater bombs at USS

harder a hot run torpedo complicates the

crew's flight a torpedo hot run is when

a torpedo shifts in the tube and causes

the propulsion sequence to start whereby

the engine of the torpedo is actually

run up and the propellers are actually

turning in the

two the sound makes it even more

unnerving

deely and his American Crew are in the

depths of

chaos they're lucky this time the Rogue

torpedo winds down before the Warhead

overheats or

explodes at that depth everyone would

have perished and their fate remain an

unsolved

mystery about an hour into the onslaught

the ocean finally Falls

silent parter has endured a depth charge

attack by Japan's greatest Destroyer

class but the clock is ticking for

Commander Dy and major Jenkins to rescue

six Allied operatives a key objective of

their patrol the command was in Bourne

in 1944 running low on food and supplies

they're being hunted by the Japanese in

extremely harsh conditions they really

need to be pulled out and every attempt

at that point had failed so for the

harder to go in for them it was

extremely important those guys needed

help D and the crew set course for

Borneo and finalized plans for the

rescue in the case of De he's taking a

submarine right up to the Shoreline so

he's making himself very vulnerable from

shorefire but he's also putting himself

in a position if a destroyer comes along

or another craft can identify him of not

being able to escape because there's no

water under the kill to dive no ability

to

maneuver after dark on June 8th

1944 harder surfaces and heads towards

Shore some 6,000 yd out they scrape

bottom it's as close as they can get to

the rivu point on the North Coast

Japanese outposts threaten the submarine

on both

sides Special Operations tend to be

dangerous because you have to go inure

if someone spots you you may be attacked

before you can get

away the crew assist Jenkins and his

partner to get their collapsable boats

and gear to the

deck they have 3 days worth of rations

should they need to remain ashore to

locate the

Commandos this would be a worst case

scenario when really brings his

submarine to the surface to make the

rescue in Borneo he's bathed in

Moonlight he's very visible it's far

more light than he'd like to have and

he's very close to the Shoreline to do

the rescue so he's also now open to

anybody on Shore who's got small arms

and Munitions so he could be shot at by

artillery machine guns even rifles not a

good position to be in

[Music]

the rescue team stays in contact with

USS harder through a series of light

signals to assist them with their

bearings as they near shore they use

another light flash to alert the

Commandos communication with those

people to be rescued is essential and

the only way to do that going to be

blinker light however anyone on Shore

can see it and the blinker light in

return from Shore is just as visible so

anybody behind the submarine could

potentially see that

too they can only hope no one else is

watching just after 1:00 a.m. the

operative signal as they approached the

darken

sub all right I see him let's get him

the they pull alongside USS

the Commandos and their Rescuers are

hauled

aboard mentally and physically

[Music]

exhausted good

job de's crew Springs to ation

gently backing away from Shore and out

of shallow

water USS harder leaves the enemy

[Music]

behind below deck the rescued operatives

receive clean clothes in their first

real food in

months the cook whips up a celebratory

meal of steak and

eggs for those living on short rations

steak and eggs for breakfast is a

massive morale boost they've been under

stress and strain for so long and then

they're greeted with really a hearty

breakfast the first real good food

they've had in a long time you can

imagine the feeling in that crew as they

were being rescued food on the US boats

was considered among the best and other

navies which sometimes say things like

well the Americans are just soft well no

we did very well quality of life is what

it's called now we understood that

before World War II

as the Commandos turn

in Commander Dy must turn his attention

to a new

directive Allied Intel has revealed that

Japanese are mobilizing warships at tawi

tawi the enemy Naval Base the crew of

USS harder barely survived just days

ago military brass believe it may be the

sign of an epic enemy offensive Japan's

new battle plan operation AO orders a

Consolidated attack to Halt advancing

American carriers and protect Japanese

gains question was are they doing it one

of the better sources of information

would be if you actually saw what was

happening in their ports that's why you

send in a sub you have to see this is

the world before satellites and very

longrange reconnaissance planes and all

the things that enable you to see what's

inside a harbor now on Google on your

computer submarine is a very good way of

finding out that's why he goes in there

the US Navy needs this information

before D takes the rescued operatives

home just 4 hours from the shores of

Borneo D and his crew spot evidence of

the military buildup

a Japanese war plane patrolling north of

the sautu pass also sees

them planes armed with death charges are

submarine's deadliest threat when there

are airplanes you'd rather dive because

first the airplane can bomb you but

second he can call in people to go after

you your job is to disappear

[Music]

as harder reaches 75

ft an aerial depth charge detonates off

the port

side the explosion throws the submarine

starbard the rescued Commandos get a

rude awakening you can have these

moments of total boredom when you're

laying on your bunk and you're just

hanging out and then you can have at the

same point absolute Terror when you may

still be laying on that same bunk and

you've got lights exploding around you

gauges being destroyed and so from a

psychological standpoint where you feel

safe in your bunk can also be where you

feel

terrified harder withstands the aerial

depth charges but the war plane will

probably report their coordinates to

Japan's nearby Fleet new heading come

about 0 to 0° de needs to keep his head

down

[Music]

on June 10th harder nears the base of

tawi

tawi it will be a perilous

prowl he must remain submerged to

conceal his presence but shallow enough

to use his Periscope only about 55 ft

below the

surface at 5:00 p.m. the crew picks up

the sound of approaching

ships Dy raises the Periscope for visual

corroboration two battleships and at

least four Cruisers steam the waters

near tawi tawi Eight destroyers and

airplanes provide additional

coverage the fleet of Warships confirms

that Japan's Navy is

mobilizing but before can report the

high-profile

sighting a patrol plane detects harder

through the glassy

Waters the aerial Scout divulges D's

presence to the

warships two of The Fleets destroyers

turn on the

submarine Battle Stations

Del targets the first escort 1,500 yd

from hard's

bow fire tube

two he fires a spread of three

Torpedoes as the other Destroyer

advances from the starboard side de is

out of time take her deep rig for death

charge

he Dives to avoid the second incoming

[Music]

ship the sub is rocked explosions

detonate the impact tosses the crew and

breaks water lines

as the sea goes silent the real hunt

[Music]

begins June

1944 an American submarine attempted to

perform reconnaissance of a Japanese

naval base in the southern

Philippines now two destroyers stalk USS

harder the Japanese Crews used two types

of sonar

the passive sonar team listens for any

man-made sound beneath the waves one way

to detect a sub is to listen for it if

you believe that they're chasing you

you'll try to cut off every bit of sound

you can so that they won't notice you D

takes harder deep and a bid to escape

the Destroyers he might also rig for

Silent Running Silent Running is the

procedure whereby you reduce all noise

in the submarine by switching off

anything that makes a noise unless it's

essential for their operation from the

submarine but no matter how quiet they

are USS harder remains vulnerable to the

destroyer's active sonar

pings if an echo returns to the

listening Crews they will hone in on the

[Music]

location rigged to roll death charges

off the stern and launch them from the

sides the two destroyers strategize

where harder may be and lay down a

carpet of underwater bombs to make death

charging work you have to visualize how

to maneuver the stern of your ship over

where you think the submarine will be

you can watch him on your sonar while

you con someone else to drop death

charges over him that's called a

creeping attack a strike within 50 ft

could breach the

hull so the idea is that you create a

barrage of these things if you do

maneuver just right you may be able to

launch enough depth charges to make a

pattern that will enclose the sub if

it's exploded a certain distance from

your sub it'll open it up and that's it

Del submarine is trapped in the heart of

enemy

Waters submerged and relying on

batteries harder lacks the power to run

away

a Submarine underwater using its

batteries goes at its maximum speed of

about 8 knots it will actually run out

of all of its battery power and just one

hour and so you've got destroyers up

above and they've got you cornered you

know you can't just put it in full gear

and go or you won't have the power

needed to get back to the surface you're

not fast enough to get away and all

you'll do is exhaust your battery so

that if they give up you're dead anyway

[Music]

come about new heading of

020 all ahead 2/3 for 5

minutes de has a plan that Japanese

probably haven't

considered using a device called a bathy

thermograph he searches for a location

where water temperature changes called a

thermocline the difference in density

between warm and cold layers distorts

sound waves enough to deflect active

sonar

[Music]

2 hours after Harter is attacked D finds

what he's searching

for Rising gradually from the depths he

locates warm curs about 200 ft below the

surface it acts as a barri to sound

waves so the sonar bounces off of the

thermocline not the submarine and it

looks like the submarine

vanishes now invisible to sonar USS

harder escapes the Waters of tawi

tawi later that night the subsurfaces in

clear

Seas to transmit details about the

warships they cited

intelligence gathered by submarines

helps the Allies to track Japanese troop

movements and thwarts Japan's objective

to reinforce a Key island in the fight

for New

Guinea it also helps to tip the balance

in favor of the US Navy and the battle

for the Philippine

Sea on June 21st harder and the rescued

Commandos reached Darwin

Australia they outmatched 16 ships and

18 aircraft to bring the Allied

operatives

Home Admiral Christie Awards Ste a Navy

cross for this epic

Patrol Commander Sam D's Legacy to the

United States Navy is one of an

inspirational role model for the

submarine Force but less than 3 months

after the Borneo rescue D's six Patrol

would be his last

on August 24th

1944 USS harder is sunk by the

underwater bombs that had escaped many

times the attack involved American built

USS

Stewart seized by the Japanese and Java

at the beginning of the war in a

terrible twist it seems likely that the

ship to best USS harder was an American

one some say the toll of D's high stakes

missions played a role in his end

others believe submarines like Harter

just ran out of chances it doesn't sound

as though the way they die is from

burning out it sounds like the way they

die as their luck Runs

Out Dilly accelerated the campaign

against the Japanese empire by directly

attacking its warships to erode its

ability to conduct

War he'd never learn of his greatest

tributes for conspicuous gallantry and

intrepidity beyond the Call of Duty Dy

would posthumously receive the

Congressional Medal of Honor after the

war the American Navy would name a new

class of Destroyers in his honor an

ironic tribute to a destroyer killer