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Narrator: The beaches
and cliffs of normandy.
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00:00:11,746 --> 00:00:18,534
In June 1944, the most
important place on the planet.
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Dr delgado: It's the greatest
battlefield in human history.
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Full of incredible stories.
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Narrator: But some of d-day's
greatest stories remain untold,
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Because vital evidence is
hidden beneath the waves.
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Imagine if we could
empty the oceans.
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Letting the water
drain away to reveal the
secrets of the sea floor.
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Now we can.
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Using accurate data.
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00:00:53,504 --> 00:00:57,172
And astonishing technology.
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To bring light once
again to a lost world.
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What shocking weapon
blew a key british
warship into fragments?
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Can this shattered landing
craft explain why omaha was the
bloodiest beach of them all?
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Hendley: Unloading had to be
stopd, because the living
couldn't climb over the dead.
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Narrator: And why did the
power of the sea mean life
or death on utah beach?
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Dr delgado: The seas were
still churned up and as the
man next to you goes down,
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It's the luck of the draw.
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Narrator: After more than a
year of meticulous planning,
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7,000 ships and a quarter
of a million men are ready.
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The allied invasion of
nazi occupied europe
is about to begin.
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Nicholas: The scale of
d-day is absolutely epic.
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It's the most extraordinary
thing that's ever been
undertaken in history.
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Narrator: For years,
archaeologists have studied
the battle on land.
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But now, they're
looking somewhere else.
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Marine archaeologists
working with the french
underwater unit, drassm,
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Are scanning 50 miles of coast
using the latest 3d technology
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Andy: This is the largest
continuous underwater mapping
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Projects ever done
for this particular area.
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Narrator: They've
already discovered
300 military relics.
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Many unknown to historians.
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Archaeologist:
That is really odd.
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It's really hard to tell
what we're looking at.
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Narrator: Scanned in forensic
detail, this deep-sea treasure
trove is transforming
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Our understanding
of the invasion.
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Nicholas: It's all
still there in a way that
actually it isn't on land.
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And we found some
tremendously exciting things.
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Narrator: Now for the first
time, we can use this data to
unlock the secrets of d-day.
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By draining away the murky
waters of the normandy coast,
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To reveal exactly
what happened here.
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As the seas begin to empty,
they uncover just some
of the hundreds of wrecks.
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Each with a story to tell.
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Target number one,
an allied destroyer.
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Sunk before the
landings even begin.
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Her fate is one of d-day's
greatest mysteries.
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1,200 allied warships
approach the normandy coast.
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Catching the enemyrning,
unprepared and off-guard.
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Prof grove: One can
imagine the feelings of
many of the germans.
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It must have been sheer terror
to have seen this huge fleet.
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Narrator: Fire rains down on
the five beaches the allies
have marked for invasion,
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Utah, omaha, gold,
juno, and sword.
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A norwegian destroyer
called the svenner is
on the eastern flank.
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A crew of 219
are preparing to join the
bombardment of the beaches.
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When suddenly
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A massive explosion
and she's gone.
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How is this svenner
destroyed while surrounded
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By over a thousand
heavily armed warships?
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Data from the survey contains
tantalizing details.
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Combining them with
the latest computer
visualization techniques
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00:06:03,180 --> 00:06:09,601
Means we can empty the
normandy coast, and go
looking for clues.
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As the water begins
to drain away.
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A sight lost for 75 years.
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Hundreds of tonnes of
twisted and ruined metal.
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Shocking evidence
of a huge explosion.
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The bow and stern
are in one piece.
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But the midsection
is shattered.
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What could have
caused so much damage?
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It can't be a shell.
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The svenner is beyond the
range of german artillery.
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And it can't be a bomb.
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The allies completely dominate
the air throughout d-day.
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But returning to the scan data,
the survey team has a theory.
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Sauvage: You can see that the
ship was violently broken into,
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Because two parts have sunk
in two different orientations.
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So that really is the impact
of a torpedo explosion.
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Narrator: If it was a torpedo,
does that mean a hidden u-boat
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Managed to penetrate
allied defenses?
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To find the answer,
the team must dig deeper
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Into the secret history
of d-day itself.
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Historian nick hewitt
visits suffolk house,
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Headquarters of d-day
commander, dwight eisenhower.
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Nicholas: This room
was the nerve centre
of a huge operation.
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It was planned all over the uk,
all over the world, actually,
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And it was two years
in the making,
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And this map is the very
map used by eisenhower
and his senior commanders
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To make it all happen.
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The key elements that could
be controlled were when it
was going to happen
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And precisely where it
was going to happen.
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Narrator: But the only way
this plan could work is if the
germans never learn of it.
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To divert attention the
allies leak fake plans.
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Prof grove: We had to
keep the germans
guessing, which we did,
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By an enormously
successful deception plan,
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Which meant the germans
didn't know, were we going
to land in norway perhaps?
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Were we going to land
just across the channel?
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That was a vital part
of the operation.
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Narrator: Hitler's
defense against invasion
is the atlantic wall.
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A vast network of bunkers,
pillboxes and artillery
positions lining the coast
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From Spain to norway.
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He believes the allies will e
coast of the english channel.
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And orders field marshall
erwin rommel to stop them.
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Influenced by the
allied deception plan,
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So concentrates his forces and
heavy artillery at calais,
cherbourg, and le havre.Port.
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So when the invasion fleet
targets the beaches of normandy
along the bay of the seine,
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The most powerful
german defenses are
in the wrong place.
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And there is not a
single u-boat nearby.
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So if the svenner was blown
apart by a torpedo, it can't
have come from a u-boat.
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The survey team dig deeper
and uncover another suspect.
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Nicholas: By June 1944,
the german navy is almost
finished as a fighting force,
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00:10:30,914 --> 00:10:36,468
But they do have the number
of small warships, operated
by actually incredibly
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Well-trained and
courageous crews.
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Narrator: Small warships
like these, torpedo boats.
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They pack a real punch.
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With six torpedo tubes and
two anti-aircraft guns,
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Maneuverable and sleek
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They can reach a top
speed of 35 knots.
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Perfect for a hit and run.
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And there's a flotilla
of them in le havre.
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Just 20 miles away
from the d-day fleet.
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Now, using all their research,
and details from the drained
wreck of the warship,
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The team can reconstruct
exactly what happened to
the svenner.
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00:11:35,412 --> 00:11:40,732
Just before dawn, the
fifth torpedo boat flotilla
is ordered to attack.
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00:11:42,836 --> 00:11:48,623
A force of just four
boats will challenge a
thousand allied warships.
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Out of the blue, the t-boats
approach the invasion fleet.
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The allies he laid
a dense smoke screen.
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00:12:03,140 --> 00:12:06,541
The t-boat crews use
it to their advantage.
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They get close enough
to fire 18 torpedoes.
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00:12:14,301 --> 00:12:20,972
Each packed with 600 pounds
of explosive, enough to
cripple the biggest warship.
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00:12:22,943 --> 00:12:27,278
But now, the smokescreen
helps the allies.
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The t-boats are firing blind.
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00:12:31,935 --> 00:12:35,703
17 torpedoes miss their mark.
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00:12:37,674 --> 00:12:43,278
Leaving just one that runs
straight into the svenner.
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00:12:48,668 --> 00:12:55,540
186 crewmen swim to safety,
but 33 go down with the ship.
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00:13:05,068 --> 00:13:09,471
The haunting remains of
the vessel stand as
brutal testimony
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00:13:09,506 --> 00:13:13,908
To the deadly power of
a german t-1 torpedo.
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00:13:17,080 --> 00:13:19,814
But the nazis are
so unprepared,
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00:13:19,850 --> 00:13:24,702
That this is their
only success at sea
throughout d-day.
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00:13:26,406 --> 00:13:30,008
Prof grove: The fact that the
germans are able to inflict
only this single loss
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00:13:30,043 --> 00:13:33,745
Demonstrates that the
defenses that had
been planned
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00:13:33,780 --> 00:13:36,581
For the landings were
very, very successful.
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It was now up to the army
alone and the army would
have a difficult job.
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Narrator: The battle for the
beaches is about to begin.
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All of them packed
with defenses.
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00:13:51,014 --> 00:13:54,666
Pillboxes, barbed wire,
machine gun posts.
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00:13:57,704 --> 00:14:02,240
As the waters along the
normandy coastline
continue to recede,
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00:14:02,275 --> 00:14:05,777
They reveal strange
objects on the sea floor.
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00:14:06,847 --> 00:14:13,501
What can they tell us of
allied plans to confront the
terrifying challenge ahead?
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00:14:25,749 --> 00:14:29,333
The naval guns fall silent.
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00:14:29,336 --> 00:14:35,840
More than 100,000 highly
trained troops are ready
to storm fortress europe.
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00:14:37,978 --> 00:14:42,347
23,000 americans approach the
most western of the beaches.
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00:14:42,382 --> 00:14:45,767
Codename utah.
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00:14:45,802 --> 00:14:49,203
But their plan
immediately unravels.
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00:14:49,239 --> 00:14:54,309
Strong currents push them
more than a mile from their
designated landing zone.
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00:14:57,447 --> 00:15:02,700
And yet, for many, this
turns into a stroke of luck.
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Led by brigadier general
theodore roosevelt, son
of the former president,
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They land in an area
between two german strong
points, an enemy blind spot.
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00:15:18,735 --> 00:15:21,936
Dr delgado: When they
come ashore, they realize
they're in the wrong spot,
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00:15:21,972 --> 00:15:26,441
But it turns out to
be the right spot, because
there's less germans there.
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00:15:26,476 --> 00:15:29,544
And so theodore roosevelt
jr in command, simply stops,
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00:15:29,579 --> 00:15:32,847
Plants his flag and says,
the war starts here.
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00:15:38,872 --> 00:15:42,974
Narrator: Roosevelt's
men outflank the
german positions.
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And soon control
the beach head.
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But a mile and half off shore,
the survey team discovers
something surprising.
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00:15:56,706 --> 00:16:00,274
Strange shapes
on the sea bed.
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00:16:00,310 --> 00:16:06,014
It looks like some
allied units never
reached utah beach .
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00:16:06,049 --> 00:16:08,900
Andy: Looks like three
different vehicles of
some sort,
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00:16:08,935 --> 00:16:12,870
Like potentially an
upside-down tank here.
167
00:16:12,906 --> 00:16:15,373
And then this vehicle's a bit
more difficult to determine
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00:16:15,408 --> 00:16:18,209
What it is and so we'll try
to take a close look at that.
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00:16:26,336 --> 00:16:28,086
Narrator: Divers
go to investigate
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And find the wrecks
heavily encrusted.
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00:16:40,316 --> 00:16:43,434
They spot what could
be tank tracks.
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00:16:45,205 --> 00:16:46,804
And a gun barrel.
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00:16:49,676 --> 00:16:53,211
But visibility is too
poor to identify them.
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00:16:54,247 --> 00:16:57,382
There is one way
to see clearly.
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00:16:59,836 --> 00:17:06,007
Combine visual clues with
the teams 3d scan data and
drain millions of gallons
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00:17:06,042 --> 00:17:08,443
Of sea water away.
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00:17:10,613 --> 00:17:17,268
As the waves recede, they
gradually reveal a cluster
of military vehicles.
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00:17:20,040 --> 00:17:23,875
But the puzzle only deepens.
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00:17:23,910 --> 00:17:29,147
They have gun barrels, and
a turret set to one side.
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00:17:34,571 --> 00:17:40,575
They've got tracks,
heavy armor.
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00:17:40,610 --> 00:17:43,177
They look like tanks.
182
00:17:44,547 --> 00:17:47,582
But this isn't a tank gun.
183
00:17:47,617 --> 00:17:52,136
It's more like the cannon
of field artillery.
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00:17:52,172 --> 00:17:54,605
So what are they?
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00:18:01,681 --> 00:18:05,233
The team examines specialized
allied weapons designed
186
00:18:05,268 --> 00:18:08,469
For the unique challenge
of this terrain.
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00:18:08,505 --> 00:18:12,140
And focus on close
support artillery.
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00:18:15,578 --> 00:18:22,366
In world war two, artillery
is normally pulled by men,
vehicles or horses,
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00:18:22,402 --> 00:18:26,370
But in sand and water,
this won't work.
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00:18:26,406 --> 00:18:32,710
So, to support the
infantry on the beaches
the allies deploy these.
191
00:18:38,067 --> 00:18:40,935
M7 priest guns.
192
00:18:40,970 --> 00:18:43,938
Artillery that
transports itself.
193
00:18:45,375 --> 00:18:51,813
105mm howizer mounted on the
chassis of an m4 sherman tank.
194
00:18:53,783 --> 00:19:01,239
A tank fires in a flat
trajectory, so the target
must be in its line of sight,
195
00:19:01,274 --> 00:19:08,479
But a howitzer fires
in an arc to lob shells
up and over obstacles.
196
00:19:08,515 --> 00:19:12,366
Perfect for enemy
positions high above
the normandy beaches.
197
00:19:18,074 --> 00:19:24,312
More research reveals that the
americans have 30 priest guns
ready to land on utah beach,
198
00:19:24,347 --> 00:19:28,766
Carried on amphibious
landing craft.
199
00:19:28,801 --> 00:19:32,970
Accounts from the day suggest
only 27 make it to shore.
200
00:19:41,881 --> 00:19:47,401
Archaeologist, james
delgado, thinks that these
could be the missing three,
201
00:19:47,437 --> 00:19:52,039
But they're nowhere near
their landing craft, which
means whatever happened
202
00:19:52,075 --> 00:19:56,077
Was so violent, it threw
the priest guns clear.
203
00:19:58,181 --> 00:20:02,733
What nazi weapon was
powerful enough to do that?
204
00:20:02,769 --> 00:20:04,502
He has a theory.
205
00:20:06,339 --> 00:20:11,509
Dr delgado: This entire
50 mile long section of the
coastline had been fortified.
206
00:20:11,544 --> 00:20:16,247
Rommel had anticipated
scattering some 50
million mines,
207
00:20:16,282 --> 00:20:21,702
He was only able to deploy 20
million mines, but just the
same, if you consider that,
208
00:20:21,738 --> 00:20:23,905
It just boggles the mind.
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00:20:26,342 --> 00:20:30,912
Narrator: The night before
d-day, around 300 allied
minesweepers
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00:20:30,947 --> 00:20:36,167
Carefully clear channels
to each of the five
landing zones.
211
00:20:36,202 --> 00:20:40,905
The invading fleet should have
a clear run to the beaches.
212
00:20:40,940 --> 00:20:43,574
So what happened to
the three priest guns?
213
00:20:48,248 --> 00:20:50,748
The survey team
spots something else.
214
00:20:54,387 --> 00:20:59,440
Plotting the precise
co-ordinates of the guns,
places them well off course.
215
00:21:03,746 --> 00:21:07,348
Their landing craft
has strayed out of
the clear channels
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00:21:07,383 --> 00:21:10,601
And drifted into an
uncleared minefield.
217
00:21:14,274 --> 00:21:18,776
The same shifting
currents that so helped
roosevelt's infantry,
218
00:21:18,811 --> 00:21:20,811
Push it into deadly waters.
219
00:21:25,735 --> 00:21:28,202
The huge power of
rommel's sea mines
220
00:21:34,177 --> 00:21:36,644
Explains why the priest
guns were thrown
221
00:21:36,679 --> 00:21:38,646
Far from their landing craft.
222
00:21:42,935 --> 00:21:48,572
The bodies of the seven men
crew may still be inside
each of these vehicles.
223
00:21:48,608 --> 00:21:53,744
A haunting reminder of
the human cost of d-day.
224
00:22:00,937 --> 00:22:05,573
At utah, this is one of
the few allied set-backs.
225
00:22:05,608 --> 00:22:10,244
Roosevelt's men take the beach
head with just 200 casualties,
226
00:22:10,279 --> 00:22:14,582
But 15 miles along the coast
other young american soldiers
227
00:22:14,617 --> 00:22:21,205
Are struggling in the
terrifying bloodbath
of omaha beach.
228
00:22:21,240 --> 00:22:25,843
Ten times more men
die here than at utah.
229
00:22:25,878 --> 00:22:27,378
But why?
230
00:22:31,084 --> 00:22:38,873
The survey team think they've
found a clue amid a twisted
mass of metal on the sea floor.
231
00:22:38,908 --> 00:22:43,811
As the once
blood-stained waters of
omaha beach drain away,
232
00:22:43,846 --> 00:22:47,281
Can this astonishing new
discovery shed light
233
00:22:47,316 --> 00:22:50,601
On d-day's deadliest
battlefield?
234
00:23:00,680 --> 00:23:09,904
After two hours of fighting
on omaha beach the allied
plan is falling apart.
235
00:23:09,939 --> 00:23:13,974
Troops are pinned
to the shore.
236
00:23:14,010 --> 00:23:19,013
2,000 dead and injured
soldiers litter these sands.
237
00:23:22,235 --> 00:23:26,203
It's the bloodiest
engagement of d-day, but why?
238
00:23:34,480 --> 00:23:39,633
The survey team is eight
miles off shore, looking
for clues on the seabed.
239
00:23:42,672 --> 00:23:47,908
When their scanner picks
up an unusual outline.
240
00:23:47,944 --> 00:23:50,277
Christopher: We do have a
definite flat bottom boat
241
00:23:50,313 --> 00:23:53,681
With a substantial amount
of damage in one corner
242
00:23:53,716 --> 00:23:56,467
And the front is
missing entirely.
243
00:23:59,572 --> 00:24:02,840
Narrator: Divers
take a closer look.
244
00:24:04,343 --> 00:24:10,181
Visibility is poor,
just six or seven feet
245
00:24:10,216 --> 00:24:15,803
But, it's immediately clear
that whatever it is, it's
taken a hell of a beating.
246
00:24:17,006 --> 00:24:20,541
There are bullet
holes everywhere
and that's not all.
247
00:24:45,101 --> 00:24:52,940
Narrator: Mangled beyond
recognition, the team
has no idea what it is.
248
00:24:52,975 --> 00:24:56,977
But the multi-beam scanner
has captured every detail.
249
00:24:58,314 --> 00:25:03,434
Using that data, we can
drain away the waters
of omaha beach,
250
00:25:03,469 --> 00:25:06,637
To reveal a twisted
mass of metal.
251
00:25:12,111 --> 00:25:18,933
It's lying upside down, making
it even harder to identify.
252
00:25:18,968 --> 00:25:24,471
But, by using the scan
data, we can raise and
rotate the wreck,
253
00:25:24,507 --> 00:25:30,044
Exposing the very topside for
the first time in 75 years.
254
00:25:31,948 --> 00:25:35,966
Now, the team think
they know what it is.
255
00:25:38,104 --> 00:25:43,741
An lci, landing craft
infantry, one of the
workhorses of d-day.
256
00:25:54,804 --> 00:25:58,072
They compare their data
with u.S. Navy records
257
00:25:58,107 --> 00:26:00,407
And make a huge
breakthrough.
258
00:26:02,111 --> 00:26:08,265
They believe it is lci 85.
259
00:26:08,301 --> 00:26:14,705
Can it help us understand
just why omaha beach
was d-day's bloodiest?
260
00:26:20,379 --> 00:26:23,847
It's clearly been at
the heart of the battle.
261
00:26:23,883 --> 00:26:28,369
Its bow is blown clean off.
262
00:26:28,404 --> 00:26:36,043
It's covered in bullet
holes and shrapnel damage
from exploding shells.
263
00:26:36,078 --> 00:26:42,566
Ragged and twisted
metal here suggests a
devastating explosion.
264
00:26:42,602 --> 00:26:47,438
The damage on lci 85 reveals
the power of german weapons
265
00:26:47,473 --> 00:26:51,008
Unleashed upon the americans
as they tried to land.
266
00:26:55,281 --> 00:26:58,499
And there is other
evidence too.
267
00:26:58,534 --> 00:27:05,639
The team unearth first
hand accounts from men who
served on lci85 that day,
268
00:27:05,675 --> 00:27:12,613
Including commanding
officer coit hendley and
lieutenant arthur farrar
269
00:27:12,648 --> 00:27:17,835
Now it's possible to
convey what happened
in terrifying detail.
270
00:27:24,377 --> 00:27:26,844
Allied troops have been
landing for two hours.
271
00:27:31,117 --> 00:27:36,670
But omaha with its high
cliffs is the most heavily
defended of all the beaches,
272
00:27:36,706 --> 00:27:40,407
And the americans are pinned
down under heavy fire.
273
00:27:42,244 --> 00:27:48,382
Lci 85 approaches the
beach with much needed
reinforcements.
274
00:27:48,417 --> 00:27:54,271
Lieutenant farrar must
get the 188 troops on
board quickly to shore.
275
00:27:56,909 --> 00:27:59,309
His problems
start immediately
276
00:28:01,247 --> 00:28:03,280
Arthur: The path 50 yards wide
was supposed to be cleared
277
00:28:03,315 --> 00:28:05,899
Through the underwater
obstacles.
278
00:28:05,935 --> 00:28:10,037
We found it near to 10
yards wide and only
partially cleared.
279
00:28:12,375 --> 00:28:15,376
Narrator: Blocked by an
uncleared mine field,
280
00:28:15,411 --> 00:28:21,515
Lci 85 is pounded by
shell after shell,
fired from the cliffs.
281
00:28:27,106 --> 00:28:32,776
Under a hail of bullets,
the commanding officer
tries another route.
282
00:28:32,812 --> 00:28:36,180
Arthur: We then tried ramming
through the obstacles about
283
00:28:36,215 --> 00:28:38,348
200 yards to the right
of our assigned place.
284
00:28:41,704 --> 00:28:46,540
Narrator: But, as the lci
grounds, it immediately
hits a mine.
285
00:28:51,614 --> 00:28:55,632
It starts to sink, but
is close enough to
shore for 50 men
286
00:28:55,668 --> 00:28:57,868
To scramble
towards the beach.
287
00:28:59,472 --> 00:29:05,309
Then another direct hit
from a german shell smashes
the landing ramps to pieces.
288
00:29:10,850 --> 00:29:14,201
Hendley: We could
hear the scream of men
through the voice tube,
289
00:29:14,236 --> 00:29:15,803
Unloading had to be stopped,
290
00:29:15,838 --> 00:29:19,640
Because the living could
not climb over the dead.
291
00:29:19,675 --> 00:29:24,745
The deck was so slick with
blood and cluttered with
bits of flesh and dead,
292
00:29:24,780 --> 00:29:29,800
And mutilated men that it was
difficult to move from one
part of the ship to another.
293
00:29:31,704 --> 00:29:35,439
Narrator: And we don't
only have the words of
eye witnesses.
294
00:29:35,474 --> 00:29:40,944
Extraordinarily, the team
discover color footage too.
295
00:29:40,980 --> 00:29:47,334
The courage and carnage on
board lci 85 is captured
by a combat camera team
296
00:29:47,369 --> 00:29:49,136
At the height of the battle.
297
00:29:50,706 --> 00:29:56,610
Here, filming the bodies
of the dead, and the
injured awaiting rescue.
298
00:29:58,581 --> 00:30:02,733
Shot in the leg, lieutenant
farrar is one of the wounded.
299
00:30:02,768 --> 00:30:08,605
He watches as his remaining
troops board another landing
craft and attempt once more
300
00:30:08,641 --> 00:30:11,241
To reach their comrades
on the beach.
301
00:30:13,078 --> 00:30:19,933
Astonishingly, 93
of them make it.
302
00:30:19,969 --> 00:30:23,604
But lci 85 is now
barely afloat.
303
00:30:28,010 --> 00:30:32,846
Her crew take the decision
to scuttle her, by setting
off an explosive charge.
304
00:30:46,378 --> 00:30:52,933
The drained wreck of lci
85 is testimony to the
horror of omaha beach.
305
00:30:54,036 --> 00:31:00,340
The allied bombardment has
failed to take out any of
over 40 enemy strong points,
306
00:31:00,376 --> 00:31:06,647
Leaving men who try to land
here facing shell fire.
307
00:31:06,682 --> 00:31:10,634
Machine guns.
308
00:31:10,669 --> 00:31:13,036
And unswept mines.
309
00:31:16,075 --> 00:31:22,512
Finally, for those who
do reach the beach, a
new kind of hell awaits.
310
00:31:27,236 --> 00:31:30,904
Dr delgado: In this
beach, men are being mowed
down with erupting fire,
311
00:31:30,940 --> 00:31:35,075
With shrapnel flying everywhere.
312
00:31:35,110 --> 00:31:39,580
And men are hunkered down and
they're waiting, as engineers
try to advance to clear mines
313
00:31:39,615 --> 00:31:43,634
And to take out pillboxes,
and it takes some time.
314
00:31:43,669 --> 00:31:46,203
And as that happens,
the casualties mount,
315
00:31:46,238 --> 00:31:49,840
Making this the bloodiest
beach on d-day.
316
00:31:54,213 --> 00:32:00,067
Narrator: Securing omaha costs
over 2,400 american lives.
317
00:32:00,102 --> 00:32:03,103
It's the last of the
five beaches to fall.
318
00:32:05,140 --> 00:32:08,575
But the allies cannot rest.
319
00:32:08,611 --> 00:32:12,045
The must now prepare for the
inevitable counter attack.
320
00:32:13,148 --> 00:32:18,936
And that means landing
thousands of tons of
supplies every day.
321
00:32:18,971 --> 00:32:22,306
With no ports, it's
a huge challenge.
322
00:32:27,046 --> 00:32:32,332
The survey team is to the east
of omaha, near to juno beach.
323
00:32:32,368 --> 00:32:38,071
They detect a new wreck, it's
huge and it's in pieces.
324
00:32:38,107 --> 00:32:43,477
What can this shattered
warship reveal about a
desperate nazi attempt
325
00:32:43,512 --> 00:32:46,713
To stop the allies in
their tracks?
326
00:32:58,377 --> 00:33:01,778
D-day plus two.
327
00:33:01,814 --> 00:33:10,737
Over 4,000 allied troops have
died to claim the five beaches,
but 130,000 are now on shore.
328
00:33:10,773 --> 00:33:16,677
Another 700,000 are ready
to land, along with vast
quantities of vehicles,
329
00:33:16,712 --> 00:33:21,815
Fuel, ammunition and food.
330
00:33:21,850 --> 00:33:25,769
The battle to resupply
the bridgehead has begun.
331
00:33:33,846 --> 00:33:39,066
These vital operations are
coordinated from specially
adapted warships.
332
00:33:43,072 --> 00:33:47,574
For juno beach, that
ship is hms lawford.
333
00:33:51,613 --> 00:33:54,548
Equipped with powerful
anti-aircraft guns,
334
00:33:54,583 --> 00:33:58,668
And state of the art
submarine hunting technology,
335
00:33:58,704 --> 00:34:02,272
She's one of the most
up-to-date ships in
the royal navy.
336
00:34:03,442 --> 00:34:05,909
Prof grove: Considerable
modifications made
to the superstructure,
337
00:34:05,944 --> 00:34:10,013
She was given a large
number of radars and
communications equipment,
338
00:34:10,049 --> 00:34:12,415
And she was converted into a
very significant command ship.
339
00:34:16,705 --> 00:34:22,709
Narrator: In the quiet of
the morning, hms lawford
is already hard at work.
340
00:34:22,745 --> 00:34:28,081
The allies have secured
the coast, the enemy
is nowhere in sight.
341
00:34:28,117 --> 00:34:30,967
When suddenly, there's
a huge explosion.
342
00:34:38,210 --> 00:34:42,612
And a short time later,
hms lawford is gone.
343
00:34:44,316 --> 00:34:46,233
The allies are dumb-struck.
344
00:34:58,080 --> 00:35:05,235
The mystery of the lawford
makes her a priority
for the survey team.
345
00:35:05,270 --> 00:35:10,140
When she's located, in
70 feet of water,
346
00:35:10,175 --> 00:35:14,010
Divers go in,
347
00:35:14,046 --> 00:35:15,645
Looking for clues.
348
00:35:17,883 --> 00:35:20,333
James delgado runs the
dive from the bridge.
349
00:35:26,809 --> 00:35:28,775
Dr delgado: Dan, dan, this
is topside. Do you read us?
350
00:35:35,634 --> 00:35:37,367
Dr delgado: And you're
able to look inside?
351
00:35:43,142 --> 00:35:46,042
Narrator: The divers
inch their way through
the lawford's stern.
352
00:35:57,573 --> 00:36:01,441
Narrator: Exploring evidence
untouched for 75 years.
353
00:36:17,576 --> 00:36:20,277
Narrator: They discover
an unusual clue.
354
00:36:20,312 --> 00:36:26,900
A set of tubes, or narrow
gun barrels, their purpose
is another mystery.
355
00:36:28,303 --> 00:36:30,904
It's time to look
more closely.
356
00:36:30,939 --> 00:36:35,909
Combining the dive team's
findings with the latest
multi-beam scan data,
357
00:36:35,944 --> 00:36:39,913
We can start to remove the
waters off juno beach.
358
00:36:48,273 --> 00:36:52,008
As the bay of the
seine slowly empties.
359
00:36:55,080 --> 00:36:57,881
It reveals a
shocking crime scene.
360
00:37:03,705 --> 00:37:07,073
The lawford is
in three pieces.
361
00:37:07,109 --> 00:37:13,346
The bow and the stern
are over 300 feet apart.
362
00:37:13,382 --> 00:37:18,635
A sea mine is unlikely
to cause this type of
shattering damage.
363
00:37:20,272 --> 00:37:22,405
So what could have?
364
00:37:24,509 --> 00:37:32,332
At the bow, the set of
tubes found by the divers is
revealed to be a hedgehog.
365
00:37:32,367 --> 00:37:37,704
A weapon system that can
fire 24 mortars at a time,
over attacking u-boats.
366
00:37:50,769 --> 00:37:56,139
But the hedgehog is not
loaded, it could be that the
mortars were fired too late
367
00:37:56,174 --> 00:37:58,708
To avert a sneak
torpedo attack.
368
00:38:00,379 --> 00:38:03,513
Or that is was never
loaded in the first place.
369
00:38:04,883 --> 00:38:07,767
But a torpedo seems unlikely.
370
00:38:10,305 --> 00:38:15,408
The allies had blocked
all u-boats from
the area since d-day.
371
00:38:16,745 --> 00:38:21,081
And the damage on the
wreck suggests something
more powerful than even
372
00:38:21,116 --> 00:38:23,533
The biggest german torpedo
373
00:38:25,037 --> 00:38:29,973
It's the kind of
damage expected from
a thousand pound bomb.
374
00:38:30,008 --> 00:38:33,209
A deadly payload delivered
by the luftwaffe.
375
00:38:39,868 --> 00:38:46,773
And yet, the allies still
have complete air cover.
376
00:38:46,808 --> 00:38:50,276
Back at the stern,
there's another clue.
377
00:38:50,312 --> 00:38:57,667
The boxes the dive team thought
were batteries are actually
full of unused ammunition.
378
00:38:57,703 --> 00:39:01,705
The lawford hasn't
even fired her guns.
379
00:39:01,740 --> 00:39:05,542
So whatever got her
was a total surprise.
380
00:39:06,545 --> 00:39:11,881
And was not spotted
by the ship's advanced
early warning systems.
381
00:39:16,338 --> 00:39:21,307
The team believe that
leaves only one suspect.
382
00:39:21,343 --> 00:39:25,311
A hi-tech nazi
wonder weapon.
383
00:39:25,347 --> 00:39:32,001
Developed in secret by
german scientists for
the past four years.
384
00:39:32,037 --> 00:39:36,806
A henschel hs 293
glide bomb.
385
00:39:36,842 --> 00:39:39,376
Nicholas: It's what
in modern parlance is
called a stand-off bomb.
386
00:39:39,411 --> 00:39:44,214
They basically enable german
pilots to launch their weapon
out of range of anti-aircraft
387
00:39:44,249 --> 00:39:47,000
Gun fire, away from
marauding fighters,
388
00:39:47,035 --> 00:39:49,636
And they can launch these
bombs and guide them
389
00:39:49,671 --> 00:39:52,005
Into place through radio
control.
390
00:39:55,410 --> 00:40:00,613
Narrator: Operated by
remote control, the
hs293 guided missile
391
00:40:00,649 --> 00:40:03,133
Is almost impossible to stop.
392
00:40:04,302 --> 00:40:09,005
And accurate enough to home in
on its target's weakest spot.
393
00:40:17,816 --> 00:40:19,833
(explosion)
394
00:40:38,904 --> 00:40:45,909
Aimed directly at the engine
room, the 1,100 pound bomb
395
00:40:45,944 --> 00:40:51,047
Causes a massive
internal explosion.
396
00:40:51,082 --> 00:40:54,100
Killing 37 men instantly.
397
00:40:55,437 --> 00:40:58,872
Hms lawford never
stood a chance.
398
00:41:05,747 --> 00:41:10,800
With the mystery solved,
it's clear that even
in the days after d-day,
399
00:41:10,836 --> 00:41:15,405
The fight for the normandy
coast is far from over.
400
00:41:15,440 --> 00:41:20,777
And even the most
powerful allied warships
remain at risk.
401
00:41:22,781 --> 00:41:24,681
Like this one.
402
00:41:24,716 --> 00:41:29,736
One of the titans of the
allied invasion force,
close to omaha beach.
403
00:41:31,873 --> 00:41:35,875
What sent this giant to
the bottom of the sea?
404
00:41:50,942 --> 00:41:57,313
The normandy coast is
under allied control.
405
00:41:57,349 --> 00:42:02,435
But driving hitler's
armies out of europe will
require millions of men
406
00:42:02,470 --> 00:42:05,238
And vast amounts
of supplies.
407
00:42:08,677 --> 00:42:13,830
Delivered by these, lsts
or landing ship tanks,
408
00:42:13,865 --> 00:42:16,432
The goliaths of the
invasion force,
409
00:42:16,468 --> 00:42:20,436
Each capable of carrying more
than 60 military vehicles.
410
00:42:24,309 --> 00:42:32,015
75 years later, the survey
team is searching for evidence
of that supply operation.
411
00:42:32,050 --> 00:42:38,004
Six miles off omaha,
their scanner picks up
the large wreck of an lst.
412
00:42:42,177 --> 00:42:49,632
Cross-referencing its
location with navy records
gives it a number, 496.
413
00:42:49,668 --> 00:42:53,503
Now, they want to find
out what happened to it.
414
00:43:02,380 --> 00:43:10,136
Using the team's
precise 3d data, we can
drain away the water.
415
00:43:10,171 --> 00:43:14,407
To reveal the smashed remains
of a d-day heavyweight.
416
00:43:18,046 --> 00:43:21,648
It's an astonishing scene.
417
00:43:21,683 --> 00:43:22,932
Packed with clues.
418
00:43:27,472 --> 00:43:29,072
The bow is obliterated.
419
00:43:33,178 --> 00:43:39,248
Scattered all around,
the tanks and trucks it was
carrying towards omaha beach.
420
00:43:46,541 --> 00:43:50,243
The whole sight is
a catastrophic mass
of twisted metal.
421
00:43:53,782 --> 00:43:56,299
The ship is lying
upside down.
422
00:43:56,334 --> 00:43:59,502
A 40 foot hole ripped
through the hull.
423
00:44:01,106 --> 00:44:06,743
Likely too large for a
torpedo and too low
for a glide bomb.
424
00:44:12,317 --> 00:44:15,134
Piecing together the
evidence at the wreck site,
425
00:44:15,170 --> 00:44:18,137
Nick hewitt thinks he
knows what happened,
426
00:44:18,173 --> 00:44:25,044
An encounter with an
ingenious, but deadly weapon,
called an oyster mine.
427
00:44:25,080 --> 00:44:28,681
Nicholas: So this is a sea
mine that responds to changes
428
00:44:28,717 --> 00:44:32,435
In water pressure caused by
passing ship and that is
429
00:44:32,470 --> 00:44:35,505
A weapon for which there is
absolutely no antidote.
430
00:44:38,877 --> 00:44:42,412
Narrator: In a nighttime
stealth attack, fast
german vessels
431
00:44:42,447 --> 00:44:48,234
Called e-boats drop
oyster mines in allied
shipping lanes.
432
00:44:48,269 --> 00:44:54,774
Each one is packed
with around 1,500
pounds of explosive.
433
00:44:54,809 --> 00:45:01,764
They are set to detonate,
only when ships heavier than
minesweepers pass overhead,
434
00:45:01,816 --> 00:45:04,467
Making them near
impossible to detect.
435
00:45:09,107 --> 00:45:18,147
Lst 496, carrying over 60
tanks and trucks is heading
straight into danger.
436
00:45:20,001 --> 00:45:25,071
As it approaches omaha
beach, the downward pressure
of the hull triggers a mine.
437
00:45:28,309 --> 00:45:32,945
A huge explosion blows a hole
in midships on the port side.
438
00:45:35,483 --> 00:45:42,271
The power of the blast
is so great, it detonates
a second oyster mine.
439
00:45:43,308 --> 00:45:47,710
This time, the explosion
rips right through her hull.
440
00:45:49,013 --> 00:45:51,013
In just 40 minutes,
441
00:45:51,049 --> 00:45:58,638
Lst496 sinks to the sea
floor, taking her war
fighting cargo with her.
442
00:46:01,242 --> 00:46:07,146
And more american soldiers
and sailors join the list
of those who sacrificed
443
00:46:07,182 --> 00:46:10,800
Their lives to
liberate europe.
444
00:46:18,042 --> 00:46:21,344
Dr delgado: Here
in the american cemetery
overlooking omaha beach,
445
00:46:21,379 --> 00:46:25,615
In the midst of these graves
of more than 9,000 men,
446
00:46:25,650 --> 00:46:30,203
75 years on, if the
question were to be asked,
447
00:46:30,238 --> 00:46:32,605
Was this sacrifice worth it?
448
00:46:32,640 --> 00:46:35,842
The answer would still
be a resounding yes.
449
00:46:35,877 --> 00:46:40,313
Because of what they did,
the new world arose,
450
00:46:40,348 --> 00:46:44,534
Embodying the ideals for which
these men fought and died.
451
00:46:44,569 --> 00:46:54,610
(music)
452
00:46:54,612 --> 00:47:21,671
(music)
453
00:47:21,706 --> 00:47:22,505
Captioned by subtitlepro llc