"In a post-apocalyptic eastern seaboard ravaged by disease and war with a man-made race of people called Partials, the chance at a future rests in the hands of Kira Walker, a sixteen-year-old medic in training"--

As a war between the humans and the Partials looms, Samm finds himself trapped beyond a toxic wasteland, and Kira finds herself under the control of Dr. Morgan, who is desperate to save the Partials.