Smithsonian HD Network

The turboprop plane begins its descent in thick fog, but things go wrong; Luxair Flight 9642 crashes a few kilometers from the runway; investigators discover that there was nothing abnormal about the two engines.

Just moments after takeoff, a Loganair cargo flight from Edinburgh loses both engines and crashes into the icy North Sea.

After a Chinese airplane lands at a top-secret US Air Force base, the search is on for the cause of a deadly rollercoaster ride in the sky.

In 1985, a DC-9 airliner crashes seconds after takeoff from Milwaukee.

A C-130 firebomber crashes while battling an epic Australian wildfire; ATSB investigators must determine the cause within an active fire zone.

Two planes collide in the sky above southern Germany and numerous people on the ground witness the disaster; based on the wreckage, it is clear that the planes collided in the air; the researchers encounter a mystery.

Just after takeoff from Honolulu, TransAir Flight 810 loses power and ditches in the Pacific; both pilots survive, blaming dual engine failure-but when the Boeing 737 is recovered, the wreckage reveals a different cause.

On Dec. 22, 1996, Airborne Express Flight 827 crashes into mountainous terrain near Narrows, Va., during a functional evaluation flight, killing all six occupants; the investigation finds that the pilots made improper flight control inputs.

When a turboprop loses engine power and crashes in Papua New Guinea, investigators discover a fatal defect existing in Dash 8s around the world.

When an Airbus crashes into the Mediterranean Sea, Egyptian authorities, French investigators and an Italian journalist theorize different causes for the accident.

An investigation into Continental Airlines Flight 1713, which crashed on takeoff from Denver during a snowstorm in 1987, changes commercial flight forever.

When an airbus A330 loses both engines, its pilots must think of a solution before they crash into the South China Sea.

After a seemingly routine landing, a Boeing 737 erupts in flames, putting 165 debarking passengers and crew in jeopardy.

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

Mike pushes himself to the limit to work with an elite team of high ropes techs on fixes hundreds of feet in the air; starting 45 stories up on the side of a skyscraper, then working and dangling on the edge.

In Philadelphia, Mike is on streets, in tunnels, on tracks and in trolley restoration garages; he is working shoulder-to-shoulder with the team that keeps one of America's largest and oldest mass transit systems running smoothly and on time.

With wildfire season ahead, Mike works with an aerial firefighting company as they fix and convert aircraft into firefighting machines, including the transformation of a 1960's C130 plane from aged military aircraft into a stateofthe art waterbomber.

At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.

Host Mike Davidson goes to the remote Atacama Desert in Chile; at observatory ALMA he works alongside the expert team as they repair some of the world's biggest antennas.

At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.

A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.

A computer glitch causes a highly automated Qantas Airways flight to nearly fall out of the sky; Australian investigators must find the cause before it happens again.