Moonglow unfolds as a deathbed confession. An old man, his tongue loosened by powerful painkillers, his memory stirred by the imminence of death, tells stories to his grandson, uncovering bits and pieces of a history long buried. Why did he try to strangle a former business partner with a telephone cord? What was he thinking when he and a buddy set explosives on a bridge in Washington, D.C.? What did he feel while he hunted down Wernher von Braun in Germany? And what did he see in the young girl he met in Baltimore after returning home from the war?