Private First Class Aiden Kaas has enlisted in the Marines for all the wrong reasons. Now deployed to Iraq at the age of 19, he just wants to put in his time and serve out his enlistment. However, after being bitten by a seemingly rabid mujahideen, he finds himself suffering from a strange illness, one with consequences beyond his wildest imaginings. As the disease ravages his body and exposes him to dangers far darker than active combat, Aiden discovers what it means to come of age, and how he must come to grips with what it is he has become.