National Geographic HD

As the snow comes down hard on Donner Pass, the crew struggle to extract a big rig loaded with hay from a ditch far below the highway.

Exploration is key to surviving the harsh arctic elements for Alaska's Next Generation.

On 26 April 1994, China Airlines Flight 140 enters an aerodynamic stall at low altitude and crashes approximately 100 metres away from the runway while on final approach to Nagoya Airport in Nagoya, Japan.

Swiss investigators must determine how a seasoned Alitalia crew flew their DC-9 into the ground on 14 November 1990. The aircraft was just a few miles short of a Zurich runway and crashed during the final approach.

War, weather and human error have led to some of the worst maritime disasters in US history. But imagine if we could empty the oceans, letting the water drain away to reveal these secrets.

The stakes are high in the fast-paced world of US shipyards. The race is on to get the vessels back on the water as soon as possible.

As the first big snow of the season hits, Becky and Edgar struggle to right a big rig spread across the entire westbound highway.

Subzero temperatures test the abilities of Alaskans attempting to survive and thrive.

Survivalist Hazen Audel ventures high on the Bolaven Plateau, a rugged and pristine corner of the Lower Mekong Basin in Laos, on a mission to seek out traditional musket hunters who make their own gunpowder using ancient techniques.

Breanna's mission for deer leads her to some unsettling signs.

Breanna and Oliver go shrimping, while Sam and Curly net for salmon.

The mystery deepens for investigators as they examine the debris of China Airlines Flight 140, which crashed into the ground at Japan's Nagoya Airport in 1994.

On route to Boise, Idaho, Continental Flight 1713 is delayed due to heavy snowfall. When the plane is finally cleared for take-off, the DC-9 barely rises from the runway when it falls abruptly, crashing to the ground.

Tim and Fuzz head to Kent to rescue a much-loved 1973 Dennis Fire Engine, previously belonging to firefighter Tony, who purchased it to restore and use to raise money for charity.

Clips reveal calamities when it comes to paramotors, stairs and powerboats. Dallas Campbell digs into the science behind painful and embarrassing misadventures.

Dallas Campbell checks out the science behind more epic fails. He takes a closer look at the perils of motocross and reveals why jumping on a table is never a good idea.

Deep below the ocean lies a tectonic monster. The seafloor is the world's biggest tsunami machine and its dangers have remained hidden from view.

Chocolate-covered cheesecake sticks, a cheddar wheel weighing 5,000 pounds, and a bakery that makes 30,000 pounds of blondies are featured.

It takes a top-secret recipe and a waterfall to make deep-fried cheese curds. Plus, the huge demand for cow pies and the science behind pop-in-your-mouth candy.

Cranes are indispensable in construction. However, if something goes wrong, chaos is inevitable. The centrifugal forces provide thrills and great fun in amusement parks, unless the car comes to a completely unexpected stop.

Explaining and investigating the world's most infamous plane crashes.

Three real world disasters dissected; in space, on a train, in a high-rise.

Tim and Fuzz are in unknown territory as they take on 28-year-old Charlie's Lexus IS200 and transform it into a full-blown drift car.

Cranes are indispensable in construction. However, if something goes wrong, chaos is inevitable. The centrifugal forces provide thrills and great fun in amusement parks, unless the car comes to a completely unexpected stop.

Explaining and investigating the world's most infamous plane crashes.

Three real world disasters dissected; in space, on a train, in a high-rise.

Tim and Fuzz are in unknown territory as they take on 28-year-old Charlie's Lexus IS200 and transform it into a full-blown drift car.

Survivalist Hazen Audel ventures high on the Bolaven Plateau, a rugged and pristine corner of the Lower Mekong Basin in Laos, on a mission to seek out traditional musket hunters who make their own gunpowder using ancient techniques.

Breanna's mission for deer leads her to some unsettling signs.

Breanna and Oliver go shrimping, while Sam and Curly net for salmon.

Tim and Fuzz head to Kent to rescue a much-loved 1973 Dennis Fire Engine, previously belonging to firefighter Tony, who purchased it to restore and use to raise money for charity.

Clips reveal calamities when it comes to paramotors, stairs and powerboats. Dallas Campbell digs into the science behind painful and embarrassing misadventures.

The stakes are high in the fast-paced world of US shipyards. The race is on to get the vessels back on the water as soon as possible.