Sean McVean and Darci Heffing return in this fourth and final fact-based tale of intrigue, murder and terror based in and around the seaside town of Beaufort, South Carolina. A disgruntled scientist, a dead landlady and some classified data smuggled into the hands of a fanatic are all the facts the authorities have to go on. That, and one man's belief that those three meagre facts add up to the likelihood of a holocaust about to be perpetrated on the unsuspecting people of the United States.