The novel is set during the winter monsoon season of 1968-69 on and around a fire support base called Matterhorn, located in the mountains of the remote north-western corner of Quang-Tri Province. The protagonist, a young and ambitious Marine lieutenant, wants to command a company to further his civilian political ambitions. Two people stand in his way. The first is a well-loved, combat-weary lieutenant of his own age, who desperately wants out of the bush, but who does not want to leave his Marines with an inexperienced and overly ambitious officer. The second is an angry young leader of the company s radical blacks, who has all the political skill, savvy, and ambition of the protagonist. As the protagonist experiences the costs of combat, he sees the terrible results of his ambition and starts to change, learning that compassion and heart are more important than ambition and skill.