Jeremiah 'Jez' Clay has been kicked out of Army Basic Training, framed by a vindictive drill sergeant. His older brother Zeke, almost an identical twin, serves in Afghanistan as a sniper. Jez visits him in Kabul, but Zeke is shot in the street by a Taliban sharpshooter named Aziz. Before he dies, he extracts a promise from Jez, a promise he is oathbound to complete. To hunt down the sharpshooter and kill him.It's impossible task for a civilian, but...