En route to the Shetland Islands, a high-tech turboprop is struck by lightning, temporarily blinding the crew and disabling their controls. The pilots declare a Mayday as the plane plunges into a terrifying nosedive. Just seconds before impact, they manage to regain control. And once they're safely on the ground, investigators uncover an unusual feature in the plane that plays a key role in this calamity.

A private jet shuttling business passengers to Akron, Ohio slams into an apartment building less than two miles from the runway, instantly killing all nine people on board. Investigators scour the wreckage, but find few valuable clues. That is, until they plot the radar data and eventually uncover an erratic descent, a puzzling delay, and a tragic perfect storm.