Almost two years after she left the army, and her best friend Concepcion Chapa, Joelle McCoy receives a cryptic voicemail from an Iraqi contact looking for Concepcion. When Joelle can’t reach her “battle buddy,” she’s told Concepcion died in a car accident, while working for the FBI But Joelle has questions and those questions launch her into the arms of an FBI agent—one of Concepcion’s former colleagues—and a search for her friend that will bring her from small-town Missouri, to Miami, and then on to Kosovo. Over the course of a year, Joelle will search for her friend, with the help of Concepcion’s former FBI colleagues, and try to come to terms with what their battle-tested friendship really means in her life. And why Concepcion would disappear without so much as a goodbye.