It's a year after a suspected EMP attack on their country.

It's a year after a suspected EMP attack on their country. A small group of senior citizens in Happy Valley—a large retirement community in South Carolina’s Low Country—realize that their situation is becoming more and more desperate. They must leave if they are to survive, but where to go? What new dangers will they face along the way? What they will have to do if they wish to continue to prevail in an unimaginably threatening environment?