Echoes of the Past is set some two millennia in the future. A 21st century nuclear catastrophe has flung the United States back to a medieval level of existence, and the nation-state of Denver is struggling for its life against both internal chaos and foreign foes. Shoren McCarter, direct descendant of a U.S. Marine who survived the nuclear wars, is a bold, courageous if sometimes flawed military leader thrust into the forefront of Denver's struggle for survival.