A small British troop is tasked with a desperate rearguard action during the chaotic early months of World War Two, forcing them to confront the brutal moral consequences of their orders. After successfully destroying a bridge to stall the German advance, Peter Lamb and his men find themselves isolated behind enemy lines in France. They must navigate the physical dangers of a rapidly shifting front while grappling with the psychological toll of their mission. The narrative follows their struggle to maintain cohesion as internal fractures threaten to compromise their survival and their duty to the war effort.

This novel presents a grounded look at the early stages of the Second World War through the lens of a small, isolated unit. The narrative structure suggests a focus on the psychological pressures of combat rather than purely grand-scale strategic movements. Readers likely find the exploration of the moral dilemma surrounding the bridge demolition to be a central point of interest. The work appears to prioritize the gritty reality of the frontlines, offering a perspective that highlights the human cost of military necessity.