Out of Control

S6 E3: What was supposed to be a brief flight from Tokyo to Osaka for the 509 passengers aboard JAL Flight 123, instead turned into the worst plane crash in history involving a single aircraft. A midair explosion, decompression, the loss of the tailfin, and hydraulic failure all conspired to send the 747 plowing into the slopes of Mt. Osutaka in August 1985. But how did it happen and why? Investigators wrestle with a difficult crash site and the shocking truth behind the disaster.