Mayday

Just moments after takeoff, Japan Airlines Flight 123 experiences two explosions. The pilot is having trouble keeping the damaged Boeing 747 in the air. It plunges into the mountain. The accident becomes one of the deadliest accidents in aviation history. Investigators immediately suspect terrorism, but the remains tell a different story, threatening all 747 planes around the world.

Corporate Airlines Flight 5966 appears out of the clouds and crashes into trees on approach to Kirksville, Missouri. The twin-engine turboprop plane catches fire just over a kilometer from the runway. The charred wreckage offers clues as to what happened. The researchers conclude that it was not a mechanical failure. They hear a recording from the cockpit that may reveal the whole beginning of the accident.