A Continental Airlines flight crashes in Denver, and clues point to a mechanical problem before investigators find a lead in the Rocky Mountains.

While carrying Brazil's Chapecoense soccer team, flight LaMia 2933 declares a fuel emergency before crashing into a Colombian mountain.

When United Express Flight 6291 crashes during its final approach only a mile from the runway, investigators must sift through the charred remains to find out what happened.

When the pilot of Swissair Flight 111 smells smoke in the cockpit soon after take-off, he races to dump fuel and land the plane safely. Instead the plane crashes in the Atlantic, killing all on board.

On 8 March 2014, Malaysia Airlines Flight 370 disappears en route from Kuala Lumpur to Beijing with 239 passengers and crew on board. As of January 2015, the Boeing 777-200ER had not been found, and speculation is that it crashed in the southern part of the Indian Ocean.

A Pakistani aircraft crashes into the Himalayas, and the investigators scramble to find answers when their most vital piece of evidence fails to deliver.

A cargo jet plummets to Earth in the Swedish Arctic. As investigators pore over the evidence, a terrifying picture of chaos and confusion emerges.

After a routine landing, a Taiwanese commuter plane is rocked by a massive explosion, but investigators find no evidence of a bomb on board.

A DC-9 ends up at the wrong end of an active runway in Detroit, and directly in the path of an oncoming 727.

En route from Bogota to the tiny Caribbean island of San Andrés, AIRES Flight 8250 is rocked by a major tropical storm. Though the crew expects to emerge from the intense weather, the plane slams into the ground just short of the runway.

SOL Airlines Flight 5428 nosedives into a remote desert, instantly killing everyone on board. Argentinian investigators scour the scattered and scorched debris and find nothing out of the ordinary.