 They help an allied convoy evade the enemy, but Donnie is subsequently killed in the firefight against the enemy militia forces.Three years later, Swagger, now a disillusioned civilian, is living in a self-imposed exile at a secluded log cabin.At the office of an unnamed Private Military Company in Langley, Virginia, a retired US Army Colonel named Isaac Johnson and his associates and his employees review Swagger's combat operation report and his Certificate of Discharge and visit him and requests his expertise to prevent a pending assassination of the U.S. president.