The book follows a young second lieutenant of the Guards, affectionately known as the Ensign, as he leaves behind the comforts of England in the summer of nineteen sixteen to join the active theater of the First World War. The narrative opens at Waterloo Station and meticulously traces his journey through the training depôts of France, the squalor and terror of the Belgian Salient, and ultimately into the blood-soaked battlefields of the Somme. Williams poses a stark problem: how young men of diverse backgrounds are abruptly stripped of their civilian identities and forged into an unyielding military machine through relentless discipline and the shared intimacy of danger. The author develops his argument through concrete detail rather than abstract rhetoric, contrasting the surreal beauty of the French countryside with the methodical destruction wrought by modern artillery.
The narrative covers the grueling routine of night fatigues, the grim reality of salvaging the dead, the psychological burden of leadership under shell fire, and the stark mechanics of bayonet combat taught by ruthless instructors. As the Battalion prepares for and executes the major assaults, including the debut of the mysterious tanks, the narrative portrays the chaotic reality of combat, the loss of friends, and the strange numbness that shields soldiers from overwhelming grief. The story reaches its emotional peak in the confusion of the captured German trenches and the final, blinding flash of a shell fragment, leaving the protagonist wounded and reflecting on the terrible permanence of war.