Technological progress is like an axe in the hands of a pathological criminal. —Albert Einstein Jenna Wallace, a research assistant for Pembroke-Smith, the world’s leading pharmaceutical conglomerate, is part of a top-secret team working on a cure for one of the most nefarious contagions the planet has ever known. Through the genetic alteration of their test subjects, they have created mutated leukocytes capable of killing even the most virulent strains within the host. These modified white blood cells are more than simply resistant to the pathogen. They aggressively seek out foreign microbes and destroy them. But there are side-effects. Sometimes the cure is worse than the disease.