Nathaniel Tripp grew up fatherless in a house full of women, and he arrived in Vietnam as a just-promoted second lieutenant in the summer of 1968 with no memory of a man's example to guide and sustain him. The father missing from Tripp's life had gone off to war as well, in the navy in World War II, but the terrors were too much for him, he disgraced himself, and after the war ended he could not bring himself to return to his wife and young son. Tripp tells of how he learned as a platoon leader to become something of a father to the men in his care, how he came to understand the strange trajectory of his mentally unbalanced father's life, and how the lessons he learned under fire helped him in the raising of his own sons.