real. The plot follows Karnes as he undertakes a mission to apprehend a saboteur named Jim Avery, who is suspected of attempting to steal sensitive microfilm linked to advanced technology. After a tense confrontation that results in Avery's death, Karnes comes across an enigmatic object, later identified as a “mind impressor,” which imparts obscure knowledge regarding a larger cosmic scheme. This discovery leads him to question the very nature of his own reality—whether he is part of a genuine existence or merely an actor in a grand historical exhibition orchestrated by a higher intelligence. As the story unfolds, Karnes faces a looming nuclear threat aimed at New York City, ultimately influencing his understanding of history, destiny, and the survival of humanity. (This is an automatically generated summary.)