On a cold February m orning in 1985, a Boeing 727 carrying 148 passengers and crew slips into the foggy abyss of the mountains of Northern Spain. And in this abyss, lies a deadly surprise. The pilots are seconds away from finding out that they have made a grave error. How did they make this mistake, and why hasn’t the captain said a word for over 100 kilometres? This is the strange story of Iberia flight 610.