Air Moorea specializes in short flights, providing a vital link between the islands of French Polynesia. It's just a seven-minute hop to Tahiti, but two minutes after takeoff, Flight 1121 falls into a steep dive into the ocean, killing all 20 people on board. Examiners have no idea what happened, until the cockpit voice recorder reveals a sudden cry of alarm that leads them to a remarkable discovery. Relive the crash and the investigation that raised awareness about a hidden threat lurking at commercial airports all over the world.