Shortly after taking off from Shanghai, Korean Air Flight 6316 disappears from radar and slams into a residential neighborhood. Investigators from China, South Korea, and the US join forces. And it's only when they reconstruct the flight in a simulator that the mystery begins to unravel—and they come to a startling conclusion.

During monsoon season—at a treacherous tabletop runway in India—the crew of Flight 1344 run out of tarmac, and their Boeing 737-800 plunges into a gorge. At first, investigators suspect a problem with the braking system. But the CVR reveals a shocking malfunction of an entirely different nature.

Overwhelmed by a cascade of conflicting error messages, Aeroperú Flight 603 plunges into the Pacific, instantly killing everyone on board. A Navy expedition to the sea floor successfully retrieves the plane's black boxes—and a single image of the wreckage reveals a minor maintenance glitch with deadly repercussions.

A Boeing 737 crashes just moments after lifting off from an Algerian desert airport. For investigators, it's clear the left engine exploded after liftoff, and that a fatigue crack eventually explains why. What's less obvious is why an experienced crew of the state-owned national carrier was unable to keep their plane in the sky.

During a regional commuter hop in New Zealand, the pilots of Eagle Airways Flight 2300 struggle to lower their landing gear.

On final approach to Islamabad in heavy fog, Airblue Flight 202 slams into the Himalayan foothills, killing all onboard.

An out-of-control turboprop breaks apart while trying to land at Dusseldorf airport, instantly killing everyone onboard.

Flying from Kathmandu to Pokhara, Yeti Airlines Flight 691 stalls and crashes into a gorge where investigators find a scene of annihilation.

Moments after taking off from the Norwegian island of Værøy, a turboprop plunges into the North Atlantic. Investigators discover damage to a critical steering component. And when they learn another flight nearly met the same fate at the notoriously tricky airport, they diagnose a perfect storm of controversial decisions that put lives at risk.

Facing heavy snow and a tight curfew, the pilots of a chartered private jet are determined to land at Apsen's notoriously tricky single-runway airport.