Alcoholic and world-weary, U.S. Air Marshal Bill Marks (Liam Neeson) lost his passion for his work long ago. Even though lives are potentially at stake during every flight, he sees the assignment as just a desk job. However, his "ordinary day at the office" becomes a high-stakes crisis during a flight to London. Marks receives a series of text messages demanding that he instruct the airline to transfer $150 million into an offshore account, or a passenger will die every 20 minutes.
