Nat Geo HD

Spring break puts new pressure on the airport infrastructure, its staff and the very planes themselves. (S1, ep 8) 7+.

Investigators come to a frightening realisation as they sort through the shattered wreckage of a commuter flight to Detroit. (S16, ep 2) 7+.

Authorities suspect a terror attack when a plane explodes after taking off from JFK. The FBI joins investigators in their search for answers. (S16, ep 4) 7+.

The Roman Empire dominated millions of miles of land and sea. What secrets powered its rule over the waves for four centuries? (S2, ep 4) 7+.

Rise of the Gladiator: A soldier enslaved by Rome and forced into gladiatorial combat leads fellow gladiators in a daring escape. (S1, ep 1) 7+.

Investigations across Italy explore the roots of this symbol of Roman power and the gladiator games that were held there. (S1, ep 1) 7+.

Experts find rare treasures and secret tunnels as they hunt for the ancient ruler's tomb in Egypt. But their biggest find is an extraordinary discovery nobody was expecting. 7+.

Experts learn secrets of the Roman Empire when they uncover one of the oldest shipwrecks in the world. A port lost for centuries is also discovered. 7+.

A suspicious passenger arriving from Nigeria tells a story that doesn't quite add up and agents have their hands full with a controlled delivery of MDMA. (S1, ep 7) 7+.

In New York, a joint operation led to the discovery of a white powdery substance in a bag inspected coming off an international flight. (S1, ep 8) 7+.

Investigation into the recently released Whitehall files on UFO and alien sightings in Britain, including 'The Welsh Roswell' and claims Winston Churchill ordered a UFO cover-up. 7+.

Mona Lisa Code & The Bone Chamber: Expeditions unlock time's biggest mysteries, starting with Malta's creepy 'Hypogeum' and an alleged code hidden in the Mona Lisa. 7+.

Incas Decoded & Viking Sun Stone: Experts try to break the baffling code of the Incas, and investigate the existence of a magical crystal allegedly owned by the Vikings. 7+.

Discover how savoury garlic naan, crunchy cheesy puffs, creamy maple cookies and sinfully sweet truffles get made. (S2, ep 5) 7+.

A look at how chewy chocolate treats, nutty health bars, creamy orange bonbons, and a popular zesty condiment are made. (S2, ep 6) 7+.

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Chris looks back at 100 years of technology and inventions, beginning with the decade that produced the new weapons, trucks, planes and ships used in WWI. 7+.

A C-130 firebomber crashes while battling an epic Australian wildfire. And ATSB investigators must determine the cause within an active fire zone. (S24, 3 of 10) 7+.

An investigation into the decisions and failings that culminated in the world's biggest accidental marine oil spill in 2010, leaving 11 crewmen dead. 7+.

After a lacklustre wolf pack operation, an American submarine commander penetrates the defences of a Japanese convoy in the Luzon Strait. (S3, ep 4) 7+.

As Hitler sets his sights east, waves of German bombers obliterate the Soviet city of Stalingrad. (S3, 4 of.

The second fatal crash involving the Boeing 737 MAX 8 in five months occurs when Ethiopian Airlines Flight 302 nosedives, killing everyone on board. (1 of 10) 7+.

In 1982, a British Airways jet plunged toward the ocean after flying through volcanic ash from an eruption. Could the crew restart the engines? 7+.

An attempt on Hitler's life must now come from within. A small group risk their lives to plot the assassination. (S1, ep 3) 7+.

Rise of the Gladiator: A soldier enslaved by Rome and forced into gladiatorial combat leads fellow gladiators in a daring escape. (S1, ep 1) 7+.

Thord and Bjoern rescue a truck that threatens to tip, while Jo Roger looks to save a snow plough - before a second truck crashes in the same spot. (S9, ep 8) 7+.

A look at how Japanese forces constructed a devastating killing ground for American troops at the Battle of Okinawa. 7+.

Examine the startling events of Helios Flight 522, which crashed into the side of a mountain when all on board inexplicably slipped into unconsciousness. 7+.

In humanity's pursuit of space exploration, numerous tragic disasters have unfolded, from the Apollo 1 fire to the Challenger and Columbia tragedies. (4 of.

Documentary following the tragic story of NASA's Space Shuttle Challenger which exploded just moments after lift-off in 1986. Onboard, was the first civilian to be sent into space. 7+.

Maritime rescue operations are one of the mainstays for the Dutch Caribbean Coast Guards who protect the waters around Aruba, Curaçao and Sint Maarten. (S2, ep 1) 7+.

After taking off with a major storm on the horizon, Copa Airlines Flight 201 disappears from the radar over one of the most remote jungles on Earth. (S13, ep 4) 7+.

Car S.O.S. is back for a ninth series. Tim Shaw and Fuzz Townshend are back on their mission to restore much loved classic cars for deserving owners. (S9, ep 10) 7+.

Homeland Security Investigation agents in Miami track a shipment of cocaine worth millions of dollars, which was found cleverly hidden in gardening pots. 7+.

Over 750,000 cars vanish yearly in the U.S. Many end up in Africa, fetching high prices. Mariana tracks the global network profiting from this stolen-car pipeline. 18+.

Rich makes a shock discovery in a science lab. Meanwhile, Diego looks to make his mint from old spark plugs and Dave gets inside a huge metal factory. (S1, ep 9) 7+.

Diego races against the clock to pull apart a plane. Rich sees dollar signs when a shop owner offers him 1,000 phones. Could there be money in old mobiles? (S1, ep 10) 7+.

Get the scoop on seriously chunky ice cream, with a side order of pumpkin spice granola bars, almond chocolate spread and lemon burst cookies. (S4, ep 16) 7+.

Discover the secrets behind Planters salted cocktail peanuts, chocolate snack bars, cheese-filled jalapeno peppers and Old Montreal steak spice. (S4, ep 17) 7+.

Five beachgoers are bitten within a 22-mile stretch of coastline. Scientists are on a mission to discover the reason behind the mysterious spike.

It's a busy week at The Columbus Zoo as the companion dogs look after three new adorable cheetah cubs, and a scimitar oryx calf is born. (S1, ep 1) 12+.

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In the 1820s, transport evolved from foot and horse to the first passenger railway in just ten years. Chris discovers how trains changed British society. 7+.

Just moments after takeoff, a Loganair cargo flight from Edinburgh loses both engines and crashes into the icy North Sea. (S24, 4 of 10) 7+.

The Roman Empire dominated millions of miles of land and sea. What secrets powered its rule over the waves for four centuries? (S2, ep 4) 7+.

It's December 1944, and with a German U-Boat circling for another shot, the crew of a merchant ship must hold out until help arrives. (S3, ep 3) 7+.

As the war reaches its endgame, the Western and Soviet Allies race to take Berlin, the heart of Nazi Germany. (S3, 5 of 6) 7+.

When a fire erupted onboard Air Canada Flight 797, the pilot made an emergency landing. Although flames engulfing the plane killed half the passengers. 7+.

On 6 August 1997, Korean Air Flight 801 crashed before landing, killing over 200 people, caused by a series of errors by the pilot and airline. (S4, ep 4) 7+.

In 1944, the Allies stormed Normandy to take Hitler's Europe, while France endured the devastation of total war on its own soil. (1 of.

World War Two left a great number of ships and submarines hidden beneath the waves. If the oceans were drained, what secrets would each vessel reveal? 7+.

Thord and Bjoern are tested to the limits when they have to rescue a truck from falling into a lake. 7+.

The incredible story of the design, top-secret construction and fate of The Yamato, the biggest and most powerful battleship in history. 7+.

A passenger jet unexpectedly runs out of fuel. The pilot heads for a decommissioned air force base, not knowing it is hosting a weekend family event. 7+.

Stefan Hördler, a world-leading expert on Nazi history, investigates a previously unpublished album containing hundreds of Nazi officer faces.

On August 4, 1944, Anne Frank and seven others were found and arrested by the Gestapo. Now, their story is being told from a new perspective: that of Anne's captors, the Nazis.

Never-before-heard trial testimony reveals shocking new details about World War II and the inner workings of the Nazi war machine. 18+.

Investigators examine similarities between a crash landing at Tokyo's Narita Airport and an accident at Newark Airport more than a decade earlier. (S13, ep 5) 7+.