Alone in the Ashes — William W. Johnstone

A lone mercenary must fend for himself against gangs of bloodthirsty thugs in a post-apocalyptic wasteland -- from a USA Todayâ€"bestselling author.
 
While those who survived the bombs, the fallout, and the germ warfare struggle to stay alive in a world gone mad, legendary soldier and survival expert Ben Raines is fighting to rebuild a nation out of anarchy and bitter chaos.

In this hellish new order, there are devils leading armed gangs of marauders. Under monikers like Cowboy Vic and Texas Red, they wreak destruction wherever they go. When Raines is cut off from his SUSA Rebel forces, he becomes their prey -- a special target for their frenzy and bloodlust. From Georgia to West Texas and Colorado to Idaho, Raines must stay one step ahead of death…until he decides it's time to turn and fight.
 
Fifth in the long-running series!