I am into the third book of the Trudge series, In Harm's Way, by Shawn Chesser. The series has been great so far and I breezed through the first two books thanks to the good writing of Chesser. The story revolves around a retired Delta Force operator in Oregon. His wife and daughter fly back east to visit her parents, and the very next day the Omega outbreak hits the US.
The story follows Cade Greyson as he figures out what's going on and goes on a journey across the US to find his wife and daughter. Obviously, there are exploits on the way, but the writer does a great job of describing post apocalyptic US, and the power grab by those in high places, as well as those civilian anarchists.
The first book was on $1 on Kindle, with the second and third books being $3. Well worth the price!