A look at how the C-47 evolved from passenger plane to a transport aircraft and flying hospital in WWII and years later as a gunship in Vietnam.

How the Blitz on Britain turned civilians into ambulance drivers, firefighters and heroes to the rest of the world.

D-Day 80th Anniversary: British Commandos raid two occupied Norwegian islands to wipe out fish oil factories being used to make explosives.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

How the Blitz on Britain turned civilians into ambulance drivers, firefighters and heroes to the rest of the world.

D-Day 80th Anniversary: British Commandos raid two occupied Norwegian islands to wipe out fish oil factories being used to make explosives.

The fighter plane that helped turn the tide of World War II; the P-51 Mustang.

The massive AC-130 provides unparalleled close air support to U.S. and allied ground troops.

The inside story of the Harrier, the world's most famous short takeoff and vertical landing fighter jet.

A dazzling new 1400 foot tapering skyscraper is built right next to New York's Grand Central. A curving wine museum requires ingenious engineering in Bordeaux, France. And possibly the world's most glamorous parking garage.

The American Museum of Natural History in NYC gets a cave-like extension; an arts center inspired by migrating birds is built on a lake in China; Boston University gains a fossil-free, Jenga-like tower.

Visiting the Vancouver House, Norway's Under restaurant and the Seattle Central Library to discover how these visionary buildings were created.

The inside stories behind a new, horseshoe-shaped complex in Rotterdam, a rock-shaped opera house in China and a makeover of the British Museum.

Challenges beset a sculptural new transportation hub for New York's World Trade Center; Amsterdam gains a building inspired by a mountain valley; a new launchpad for space travel prepares for liftoff in the New Mexico desert.

Alien port authority in Belgium; ultrathin skyscraper in Manhattan; hanging museum in Scotland.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

A ride on the Panama Canal Railway reveals the track repairs, engine overhauls and dangerous searches involved in keeping vital freight runs rolling.

Host Mike Davidson assists on a multi-million-dollar tunnel-boring project underground in Toronto.

Mike helps fix the vessels that the U.S. Coast Guard use to keep the oceans safe; he replaces key parts of ship engines, removes a large crane from a buoy tender, and fixes a helicopter for a critical exercise.

Mike helps fix the machines that keep one of the United States' biggest ports moving; he assists a team in moving a 3-million pound crane.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

Three flights ending in tragedy, prove that minor missteps during takeoff can have disastrous consequences.

The 2013 crash of Asiana Airlines Flight 214 in San Francisco shocks the nation.

A plane crash lands in Guam after losing sight of the airport in a storm.

When an aircraft loses total engine power, a pilot's training can make all the difference in the world, but it's still up to investigators to determine what went wrong.

A baboon invasion on a runway threatens to cut off a remote safari lodge, engine faults wreck airline flight schedules and a wild cheetah gets a first taste of flying.

A wildlife invasion delays a flight, a massive airliner attempts a night landing at a bush airport, cargo handlers rush to deliver flowers in time for Mother's Day, and a patrol plane discovers fires raging through Kruger Nation.

When critical instruments in the cockpit can't be trusted, the consequences can be fatal.

On 31 October 2000, Singapore Airlines Flight 006 collides with construction equipment at Chiang Kai Shek airport in Taipei while attempting to take off on the wrong runway in a typhoon, killing 83 of the 179 people on board.

From the wreckage of three airplane crashes, survivors emerge to tell harrowing tales and provide critical data about what to do in an emergency.

During a storm, a strong gale slams Delta Airlines Flight 191 to the ground killing most people on board.

On 25 May 1979, the number-one engine on American Airlines Flight 191 detaches moments after taking off from Chicago O'Hare International Airport. The aircraft banks to the left and crashes into an open field, killing all 271 people on board.

A shocking error in the cockpit causes the crash of a 737 on takeoff and leaves an entire nation reeling.

An aerial tour of Kansas shows a state with varied landscapes, scenic areas and historical conflict sites.

A coast-to-coast aerial tour celebrates the best small towns in the United States and tells stories about the men and women who called them home.

A high-flying tour over Illinois; the Windy City, prairies and rivers; the state's dramatic history of great fires, crime and historic battles; Chicago's unique skyscrapers and the Lincoln Tomb.

A flight over North and South Dakota reveals the shared history and the vast differences of these sibling states.

Soaring above the Cornhusker State's vast farms, towering spires, desolate badlands and gleaming cities.

An aerial tour over America's Great Plains tracks the prairies, farms, oilfields and wildlife.

An aerial tour of the world's first national park showcases Yellowstone's diverse wildlife and rich history.

The Lone Star's rugged canyons, historic ranches and modern cities.

Beauty of the Empire State; Central Park; tallest skyscrapers; mighty rivers; 17th century explorer Henry Hudson.

Taking an aerial tour of Virginia.

White sand beaches; Blue Ridge Mountains; Charleston's Rainbow Row.

D-Day 80th Anniversary: In 1943, a squad of Norwegians attempts to destroy a power plant the Nazis may be using for nuclear weapons research.

The first British airborne raid into enemy-occupied territory in WWII-Operation Biting.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

D-Day 80th Anniversary: Easy Company's mission to take out German howitzers hours before the D-Day invasion.

First-person accounts and rare color footage detail the final 100 days of World War II in Europe.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

D-Day 80th Anniversary: Easy Company's mission to take out German howitzers hours before the D-Day invasion.

D-Day 80th Anniversary: In 1943, a squad of Norwegians attempts to destroy a power plant the Nazis may be using for nuclear weapons research.

First-person accounts and rare color footage detail the final 100 days of World War II in Europe.

Following three horrifying crashes, investigators uncover fatal flaws in the very operations designed to prevent aircraft from flying into mountains.

A plane carrying a Brazilian soccer team crashes just ten miles from the airport in 2016.

A passenger plane veers off the runway in Denver sparking an investigation into the airport's proximity to the Rocky Mountains.

A look at the fate of United Airlines Flight 232 which crashed into Sioux City's runway in 1989; it caused a subsequent explosion that left 111 people dead.

The 2000 crash of an Alaska Airlines plane just off the California coast leads to a disturbing discovery about the company's cost-cutting procedures.

UPS Airlines Flight 1354 clips the tops of trees and crashes into a hillside about one nautical mile short of the runway during final approach to Birmingham-Shuttlesworth International Airport in Alabama.

A plane carrying Mexico's interior minister crashes into Mexico City's financial district.

Garuda Indonesia Flight 152 crashes into mountainous woodlands while trying to land at Polonia International Airport in Medan, North Sumatra, in low visibility.

On its final approach to Charlotte, N.C., US Air Flight 1016 is engulfed in intense rain obstructing the view from the cockpit; the pilots abort the landing, but the aircraft crashes to earth, hurtling along a road and breaking apart.

Three catastrophic runway collisions raise the same pressing question; a look at how two planes end up on the same runway at the same time.

In the skies above the Mojave Desert, the VSS Enterprise accelerates toward the outer reaches of Earth's atmosphere, guided by test pilots; the aircraft breaks apart and falls from the sky, killing the flight's co-pilot.

Delta Air Lines Flight 1141 crashes beyond the runway while taking off from Dallas/Fort Worth International Airport.

Two 747s collide on the runway of a small airport in the Canary Islands, resulting in history's deadliest air crash.

Korean Air Cargo Flight 8509 crashes shortly after take off from London Stansted Airport on December 22, 1999.

An airliner dodges thunderstorms flying to a cyclone-damaged island; aerial firefighters cross the country to battle infernos; daredevil chainsaw operators hang underneath helicopters.

A K9 anti-poaching squad flies into action, a heavy-lift helicopter flies emergency supply missions across a storm-ravaged island and an airliner races to reach its destination before a power outage plunges the airport into dark.

An engine fault threatens to ground an airliner, scientists and pilots team up to protect cattle from lion attack, damaged runway lights plunge a busy airport into darkness, and South Africa's top aerial display team wows crowds.

A medical helicopter flies over rush hour traffic to collect a patient, the search is on for a lost elephant, engineers race to fix a chopper, and airline pilots fly to one of the world's most dangerous runways.

Arrow Air Flight 1285 with 248 American soldiers on board crashes seconds after refueling in Newfoundland.

Pilots of Southern Airways Flight 242 must try to land on a Georgia highway after the engines die and the windshield shatters.

Chalk's Ocean Airways flight 101 crashes just after take-off from Watson Island in Miami on December 19, 2005, killing 20 people.

An Air Inter flight crashes into the Vosges Mountains while attempting to land killing most of the 96 passengers.

A simple error years prior causes the deadliest single-plane crash in history.

SAS Flight 686 takes off from Milan's Linate Airport and moments later collides with a Cessna on the runway.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

The last days of Martin Luther King told through television and radio news accounts.

A look back at some of President Obama's speeches and statements.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

One of Holland America Line's largest cruisers makes its debut in the Caribbean, highlighted by a visit to an exclusive private island resort.

Experience romance on a mega cruiser that pampers its guests with the best of Italian design and American convenience.

The world's latest, most-advanced expedition cruise ship Roald Amundsen whisks passengers on an adventurous voyage to Antarctica.

Costa Diadema's seven-day cruise around the Mediterranean offers Italian delights to its passengers and challenges to its captain and crew.

Japan's largest cruise ship brings East and West together on a cruise featuring cherry.

We hop aboard a seven-day cruise to the Canary Islands and Madeira aboard the first large liner to run purely on cleaner-burning liquefied natural gas.

Travel aboard the colourful trains of the State Railway of Thailand and explore the famed Death Railway; the trains travel through ancient areas, historic tunnels, and raging rivers.

The highly-specialized North Rail Express container train travels from Narvik to Oslo, delivering cargo of fish as quickly as possible.

The prairies of Canada; the deserts of Australia; the cold of the Norwegian Arctic Circle; the steepest slopes of the mighty Swiss Alps.

The maiden voyage of the Oasis of the Seas, the largest, most revolutionary cruise ship in the world.

The Norwegian Breakaway cruise ship sets sail on her first voyage, and her captain faces a tough decision when a North Atlantic tempest forms.

The Norwegian Epic is a billion-dollar showboat with more than 20 bars and restaurants and pool decks that transform into nightclubs.

Sailing from Chile and Peru to Ecuador and Costa Rica, the luxurious Seven Seas Explorer cruise ship is full of marble, granite and almost 500 chandeliers.

The Sky Princess carries passengers from Fort Lauderdale, Florida, to three Central American stops.

The Blue Angels run through their unique, specialized training.

Hector Rail's trains haul timber to a pulp mill in Ostrand, Sweden on some of the most difficult railways in the country.

Facing Australia's fierce heat, Celebrity Solstice provides guests with views of waterfalls, jumping crocodiles, koalas and the Great Barrier Reef.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

The Indian Pacific is a four-day, 4,352-kilometre transcontinental journey across Australia, a trip which features the world's longest straight stretch of railway and steepest incline.

Go behind the scenes with NTV's two Italo trains - the AGV and the EVO - as they expand to cover more of the Italian railway network, connecting passengers from Turin to Venice, and Naples to Milan, on two of the world's fastest trains.

Follow mega cruiser Regal Princess as she whisks guests to Germany, Russia, and Scandinavia in style.

The new Viking Sea cruise ship whisks guests away on a journey across the Arctic Circle and into the heart of Norway.

Visit Stonehenge, kiss the Blarney Stone and hunt for Nessie on a magical tour of the British Isles, aboard Marina.

This 50-year-old ocean liner offers off-season Baltic tours, battling unpredictable weather to deliver one-of-a-kind experiences.

A propeller breaks off and rips a hole in the fuselage of an aircraft en route from Alaska to Washington 19,000 feet over the Pacific Ocean.

On 12 November 2001, just two months after the September 11 attacks, American Airlines Flight 587 spirals out of control shortly after taking off from John F. Kennedy Airport and crashes into Queens.

TAM flight 402 slammed into a residential neighborhood and burst into flames, just seconds after lifting off from Congonhas airport in São Paulo, Brazil, killing all 95 people on board and three people on the ground.

On December 21, 1992, Martinair Flight 495 crashes off the right side of the runway while attempting to land at Faro Airport in Faro, Portugal, in severe weather conditions, killing 56 of the 340 people on board.

Leading aviation experts are confronted with a shocking theory as they investigate one of the greatest aviation mysteries of all time.

When an African airliner mysteriously crashes, Namibian investigators have to rule out a host of possible causes before reaching a conclusion.

A Northwest Airlines flight cruises above the Bering Sea before problems develop and pilots must make an emergency landing in Anchorage.

An air traffic controller's mistake causes a Boeing 737 to land on a runway already occupied by another aircraft.

History's most terrifying air disasters, and the investigations that followed, are revisited and reexamined.

Three planes fatally out of balance force investigators to question every calculation; it's a flight risk that's entirely preventable, and yet repeated disasters reconfirm the need for critical backup systems.

If pilots aren't prepared when the runway is in sight, a landing can quickly become a tragedy.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

JFK Jr. disappears on the way to Martha's Vineyard; a captain loses his bearings and crashes over the Red Sea; pilots crash a plane over Indonesia.

The business jet carrying PGA golfer Payne Stewart and former Alabama football quarterback crashes; how loss of pressurization and structural failure led to this crash and the deadliest aviation accidents in both Greek and Taiwanese history.

When former race car driver Niki Lauda's planes nosedives into a Thai jungle, a one-in-a-million failure reveals a weak spot in every Boeing 767; radio silence between pilots and air traffic controllers send investigators hunting for answers.

After taking off from Taiwan, a China Airlines 747 suddenly disappears from radar and crashes, killing 225 people.

A 747's cargo door opens at 23,000 feet, causing an explosive decompression that ejects nine passengers from the plane.

A look at the smallest ships of war and the major roles they've played over the centuries, including the 1776 gunboat built to stop a British invasion and the HA-19 sub.

New high-tech investigations uncover what sunk a World War I cruiser, a World War II submarine, a British destroyer from the Falklands War, and more.

A look at how navy weapons have evolved over the centuries, from cannons to gun turrets to nuclear missiles and beyond.

A look at Naval warfare's fastest combat ships and how the advantage of speed determined the outcome of some of the great seas battles of the last 150 years.

A look at riverine warfare from the Civil War to Vietnam and small but powerful combat ships.

Recounting some of maritime warfare's explosions, from world wars and Vietnam to the nuclear tests at Bikini Atoll.

The story of one of the world's most effective war machines: the Viking longship, seeing how its design evolved from swift war canoe to versatile and feared ship that would change the course of history.

Vessels that operate in secret, unseen by their enemies, from secret missions that helped win World War II to modern stealth ships using strange shapes and technology to avoid spying ears and eyes.

A look at the most famous wooden warships over the course of 500 years.

The ships that made mighty empires, from the lone wolves that patrolled the high seas for imperial Britain to the USS Laffey's heroic WWII battle against kamikazes at Okinawa.

The history of the longest serving bomber in the U.S. military: the B-52 Stratofortress.

The 50-year evolution of the Army's top transport helicopter, the CH-47 Chinook.

Electronic warfare aircraft; the EA-6B Prowler; the EA-18G Growler.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

How the legendary.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

How the legendary.

A dazzling new 1400 foot tapering skyscraper is built right next to New York's Grand Central. A curving wine museum requires ingenious engineering in Bordeaux, France. And possibly the world's most glamorous parking garage.

The American Museum of Natural History in NYC gets a cave-like extension; an arts center inspired by migrating birds is built on a lake in China; Boston University gains a fossil-free, Jenga-like tower.

Visiting the Vancouver House, Norway's Under restaurant and the Seattle Central Library to discover how these visionary buildings were created.

The inside stories behind a new, horseshoe-shaped complex in Rotterdam, a rock-shaped opera house in China and a makeover of the British Museum.

Alien port authority in Belgium; ultrathin skyscraper in Manhattan; hanging museum in Scotland.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dali in Florida.

Mike works with the U.S. Army in Germany inside the massive fix facility The MAK, Maintenance Activity Kaiserslautern, as teams repair over one hundred Bradley fighting vehicles, then embeds with troops in a massive two week long battle exercise.

Nevada has over 40,000 abandoned mines posing dangers. Mike joins contractors for a week to secure five sites. Alongside biologists, they explore and document wildlife. Reaching these isolated mines requires barges, helicopters, and bulldozers.

Mike joins the Assault Craft Unit 5, the U.S. Navy's team for Landing Craft Air Cushions (LCACs); LCACs carry heavy vehicles and troops onto beaches; Mike helps fly & fix an overhauled LCAC during a U.S. Marines beach assault training mission.

An in-depth look at how things are repaired.

Mike Davidson heads to Brazil, where an offshore crew is racing the clock to set up giant power ships to deliver electricity to a country in desperate need.

Flydubai Flight 981 enters a rapid descent and crashes nose-first at Rostov-on-Don Airport in Rostov-on-Don, Russia, after aborting its second landing attempt in poor weather conditions.

Devastating failures in the air put pilots to the test and shine a light on three feats of flying.

Five aviation disasters and the changes they have forced air-traffic controllers to make.

On 1 June 2009, Air France Flight 447 stalls and crashes into the Atlantic Ocean while flying through a thunderstorm, killing all 228 people on board.

An airliner dodges thunderstorms flying to a cyclone-damaged island; aerial firefighters cross the country to battle infernos; daredevil chainsaw operators hang underneath helicopters.

A K9 anti-poaching squad flies into action, a heavy-lift helicopter flies emergency supply missions across a storm-ravaged island and an airliner races to reach its destination before a power outage plunges the airport into dark.

The captain of a Navy cruiser must quickly determine if an approaching plane is friendly.

A helicopter carrying oil workers to an offshore drilling platform crashes.

The two-man crew of a UPS cargo jet must attempt an emergency landing when a fire in the cargo hold fills their cockpit with smoke.

On August 22nd, 1985, 55 people died aboard British Airtours flight 28M when its engine catches fire as it accelerates.

Investigators struggle to understand the unusual flight path and Himalayan crash site of Thai Airways Flight 311.

A helicopter carrying offshore drilling workers crashes into the ocean, leading to an investigation that reveals a fatal flaw in the chopper's design.

A flight over Arizona explores the state's storied past, architectural achievements and landscapes, including America's natural wonder, the Grand Canyon.

The Empire State of the South; ancient Moundbuilders to the Cherokee Indians.

A rookie pilot flies passengers for the first time, airport staff battle to prevent bird strikes, a helicopter carries a heavy load over Johannesburg, and Africa's most skilled helicopter pilots fly low to protect rhinos from poachers.

A mysterious engine fault delays a new airliner; scientists fly into the bush to hunt a killer disease; a broken-down plane closes a major runway, and a snake hunt across the airport ends in a face-off with a spitting cobra.

A baboon invasion on a runway threatens to cut off a remote safari lodge, engine faults wreck airline flight schedules and a wild cheetah gets a first taste of flying.

A wildlife invasion delays a flight, a massive airliner attempts a night landing at a bush airport, cargo handlers rush to deliver flowers in time for Mother's Day, and a patrol plane discovers fires raging through Kruger Nation.

How the legendary.

How the Blitz on Britain turned civilians into ambulance drivers, firefighters and heroes to the rest of the world.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

A rookie pilot flies passengers for the first time, airport staff battle to prevent bird strikes, a helicopter carries a heavy load over Johannesburg, and Africa's most skilled helicopter pilots fly low to protect rhinos from poachers.

A mysterious engine fault delays a new airliner; scientists fly into the bush to hunt a killer disease; a broken-down plane closes a major runway, and a snake hunt across the airport ends in a face-off with a spitting cobra.

A baboon invasion on a runway threatens to cut off a remote safari lodge, engine faults wreck airline flight schedules and a wild cheetah gets a first taste of flying.

A wildlife invasion delays a flight, a massive airliner attempts a night landing at a bush airport, cargo handlers rush to deliver flowers in time for Mother's Day, and a patrol plane discovers fires raging through Kruger Nation.