Harper gets caught in a firefight when she, Abe and Maya travel to Syria to investigate a Marine accused of desertion. Col. Turnbull travels to Germany to be with her wounded son, Adam.

Abe and Harper’s investigation into a Marine recruiter’s alleged misconduct may be derailed when the key witness refuses to testify.

When a Marine is accused of helping a terrorist escape from Guantanamo Bay, Abe and Harper believe that they have an open-and-shut case until they are mysteriously denied access to key evidence without explanation. Also, Trey and Maya attempt to get Rami reassigned back to their office.