National Geographic HD

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.

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.

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.

John Ryan, owner of Shamrock Salvage & Towing, has met his match when confronted with a 27-metre rusted-out, sunken barge trashing a local beach.

As the worst snowstorm of the season traps Eddie in traffic he receives a desperate call from his pregnant wife - she may be going into labour.

With temperatures hitting record-breaking lows, Alaskans must take steps to secure their lives against the harsh arctic elements.

Hazen Audel goes in search of giant reticulated python in the swamps of the Beung Kiat Ngong swamps, one of the Mekong region's great wildlife havens.

Matt and Carl prepare for adventure. Oliver chases after deer.

Carl and Morgan join Matt for his first crabbing trip, while Curly teaches Sam duck hunting techniques. Meanwhile, Jiggy and Breanna assist Veronica in fulfilling her Uncle John's final wish.

Jimmy Leeward went out to set a speed record at the Reno Air Races yet wound up in one of the deadliest airshow disasters ever. Experts investigate what went wrong.

Experts uncover something startling that threatens cargo pilots worldwide when they investigate the crash of a US plane at Guantanamo Bay.

The boys head to Manchester to take on a 1963 Citroen HY Van for a family whose lives were torn apart when one of them was killed during the Manchester arena bombing in 2017.

Dallas launches into the cosmos as he checks out gravity and G-force, takes an explosive look at impact events and reveals some of spaces most habitable areas.

Orbits, light speed, weightlessness and intergalactic docking get the Dallas Campbell treatment in a second launch into the science that controls the universe.

Beneath the waters of the world, lies undersea empires and relics of their bloody wars. Through the use of cutting edge technology we will uncover lost empires for the first time.

Profiling a Wisconsin factory making three million peppers each year, a candy factory with hand-made caramel-pecan praline, and a Buffalo bar with its own sauce.

Featuring a Charleston tea plantation, Hoisin sauce that has been sent to outer space, and ice cream sandwiches that have been a San Francisco tradition since 1928.

Two sisters deny having taken drugs, but confess when one of them reveals she's pregnant. A woman may have a mental disorder, and a young man with liquid cocaine in his beer may be lying.

Agents arrest two traffickers carrying similarly branded bricks of cocaine. Panicked asylum seekers refuse to cooperate, causing an uproar.

The Coast Guard helps a fisherman on Aruba who has run into trouble, the Search and Rescue team helps a boy who may have broken his back and a boarding team tries to apprehend a boat carrying refugees.

Mariana reveals dangerous & deadly illicit worlds operating in plain sight.

Two sisters deny having taken drugs, but confess when one of them reveals she's pregnant. A woman may have a mental disorder, and a young man with liquid cocaine in his beer may be lying.

Agents arrest two traffickers carrying similarly branded bricks of cocaine. Panicked asylum seekers refuse to cooperate, causing an uproar.

The Coast Guard helps a fisherman on Aruba who has run into trouble, the Search and Rescue team helps a boy who may have broken his back and a boarding team tries to apprehend a boat carrying refugees.

Mariana reveals dangerous & deadly illicit worlds operating in plain sight.

Hazen Audel goes in search of giant reticulated python in the swamps of the Beung Kiat Ngong swamps, one of the Mekong region's great wildlife havens.

Matt and Carl prepare for adventure. Oliver chases after deer.

Carl and Morgan join Matt for his first crabbing trip, while Curly teaches Sam duck hunting techniques. Meanwhile, Jiggy and Breanna assist Veronica in fulfilling her Uncle John's final wish.

The boys head to Manchester to take on a 1963 Citroen HY Van for a family whose lives were torn apart when one of them was killed during the Manchester arena bombing in 2017.

Dallas launches into the cosmos as he checks out gravity and G-force, takes an explosive look at impact events and reveals some of spaces most habitable areas.

Tim Maltin explores unheard evidence and overlooked details to reveal the main reason why the Titanic sank with a simple trick of light.