On August 19, 2014, the jihadist rebel group known as ISIS uploaded a video to YouTube. Entitled "Message to America," the clip depicted the final moments of American journalist James Foley's life--and the gruesome aftermath of his beheading at the hands of a masked executioner. Foley's murder--and the choreographed killings that would follow--captured the world's attention, and the Islamic State's kidnapping campaign exploded into war. Hunting Season is a riveting account of how the world's newest and most powerful terror franchise came to target Western hostages, who was behind it, and why almost no one knew about it until it was too late.