He drives her crazy. The timing couldn't be worse. Heather Sanchez has spent weeks working beside cyborg captain MX409, and every stubborn argument makes the attraction between them harder to ignore. She has no intention of doing anything about it. They have a war to win. Then Heather and MX discover a hidden synth base and an army large enough to wipe out humans and cyborgs alike. Suddenly, they're running out of time. Survival requires trust, teamwork, and far too many hours spent together. The closer they get to the heart of the synth operation, the harder it becomes to pretend all that heat between them is irritation. They may have found the key to ending the war. If they survive long enough to use it, Heather may also have to admit the infuriating cyborg captain is exactly the male she wants beside her when the fighting stops.