January 20th, 1992 High over Frances mountainous Alsace region, Air Inter Flight #148 starts its descent towards Strasbourg airport. An Airbus A320, the aircraft is the worlds first to rely mainly on computerized commands to control it, and while its autopilot had been programmed to land on a specific runway, high winds and poor winter weather mean the pilots must take over the controls to land on another runway. Slightly off course, a controller guides the pilots as they prepare to make a visual landing. But as they descend through the clouds, the aircraft suddenly rips through the treetops below and slams into the side of a mountain. Can rescuers locate the survivors in time? And can investigators figure out what caused the crash?