Independent Air Flight 1851 is en route from Italy to the Dominican Republic and is scheduled to refuel on a Portuguese island. For some reason, a Boeing 707 crashes into a mountain just minutes before the airport. The international team of investigators finds no mechanical faults at all and is confused about the cause of the accident. Then the CVR reveals a cluster of errors that sealed the fate of the 144 passengers.

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.

After losing both engines, a turboprop crashes in Papua New Guinea and investigators soon uncover a deadly flaw in an aircraft used around the world.

A Kazakh crew manage to land an uncontrollable aircraft and investigators must determine how a freshly-serviced plane was released with a fatal flaw.

When the cockpit window of Sichuan Airlines 8633 explodes, the crew somehow battles gale-force winds and oxygen deprivation to safely land the plane.

When a UK billionaire and his family die in an Australian seaplane crash, investigators uncover a minor maintenance issue with deadly consequences.

The plan to save a Bulgarian airliner hinges on convincing the violent hijackers that their demands have been met before the plane runs out of fuel.

An Amazon cargo plane nosedives into a swamp outside Houston, the evidence eventually leads investigators to a pilot with a long history of failures.

EgyptAir flight 804 crashes into the Mediterranean on its way from Paris to Cairo. Evidence initially suggests that the plane caught fire, but Egyptian authorities later blame the crash on terrorism. The case will be handed over to the Egyptian state prosecutor for criminal investigation. Six years later, an Italian reporter leaks the information and a new confusing theory surfaces.