Gunnery Sergeant Tyler Monroe knows how to do one thing and one thing only, be a Marine. Her future takes a painful turn when a roadside bomb banishes her to the halls of Camp Peary, tasked with teaching a group of prospective CIA analysts hand-to-hand combat, in six short weeks. Recruit Brooke Hart was never in Tyler's plan, and keeping her at arm's distance is proving to be her most difficult mission yet.