Control of Etna Station is balanced on a knife's edge. A daring mission to rescue a hostage will shake the foundations of the already crumbling command structure, making way for enemies to emerge from outside, and from within. Dewey, the advanced zombies, begins to assert his dominance and reveals his ploy to master all humankind, while Vivian Deneaux shows her hand, rigging the complex to blow if she's not given the keys to the city...