When Vanessa dies of the flu, Walt is devastated. But she isn’t the last. The virus quickly kills billions. Months later, a vessel appears above Santa Monica Bay. The aliens who sent the virus are ready to finish the job—and Earth’s survivors may be too weak to resist.

A virus has wiped out nearly the entire human race and cities have become graveyards filled with unspeakable horror. U.S. Deputy Marshal Mason Raines must align with survivors of the town of Boone in a life and death struggle against a gang of violent criminals.