Overview: On a commuter flight from Minneapolis to Hibbing in 1993, Northwest Airlink Flight 5719 descends into the clouds on a cold Minnesota night. Suddenly, the pilots of the twin-engine turboprop find themselves ricocheting off the treetops, crashing violently into a hillside. Investigators face intense pressure to find the cause of the crash that killed all 18 people on board. Initial concerns center around the inexperienced first officer, but further digging reveals a darker issue, one that surfaced months before the plane ever left the ground.