1: Killer Attitude (Northwest Airlink Flight 5719)
Feb 20, 2017
After a routine one-hour flight from Minneapolis, Northwest Airlink Flight 5719 crashes in northern Minnesota, killing everyone on board. Investigators face intense pressure to find the cause. The cockpit voice recorder raises disturbing questions about an inexperienced pilot. But as investigators dig deeper, they uncover a troubling pattern of abuse that led to a breakdown in human cooperation.