Air China Flight 129 prepares to land at Gimhae International Airport in Busan, South Korea when a direction from air traffic control to change its approach sets off a series of tragic events that claim the lives of 129 people on board. What happened in those final moments between the captain and his crew? And could a few critical seconds have made the difference between life and death? Discover what caused the worst air disaster in South Korean history and find out the key recommendations made to prevent a similar tragedy from happening again.