On the eve of the signing of a billion-dollar contract that could save the aircraft manufacturing concern Norton Aircraft from financial collapse, its N-22 Airbuses, on which the main bet was made, one after another end up in plane crashes. What is this? A fatal coincidence of circumstances or miscalculations of the designers? Pilot mistakes or the machinations of evil competitors? To find the answer to these questions, there is only one week and only one person - Casey Singleton, head of the accident investigation team. But finding out the truth does not always mean saving your reputation.