An American general is captured in the Middle East by terrorists who threaten to behead him in days. Moments before rendered unconscious, he hears his captors speaking American English. Who are these people?

Gunnery Sgt. Kyle Swanson, a top Marine sniper, is vacationing on a yacht in the Mediterranean when he receives orders to mount a top-secret mission to rescue the general. But as Swanson and the Marines prepare to land in the Syrian desert, they unwittingly fly into an ambush. How did the enemy have details of a mission known only to a few high-level American officials?

Now Swanson—the sole survivor among his men—must journey into the dark heart of the desert to achieve his mission. But soon he will encounter the most dangerous enemies of all: His fellow Americans. Their sworn enemy: The captured general whose fate now rests in Sniper Swanson’s hands…