Naive and already war-weary, James Gouding takes up a position in Naples in 1943. What he doesn't anticipate is that this involves a limited menu of fried Spam fritters and interrogating the would-be Italian fiancees of members of the armed forces.

James's chance at true heroism arrives when a German tank is sighted and he is caught in its path. However, it is the imperious and dogmatic Livia who opens the hatch and yells at him to stop being such an idiot. Livia gladly becomes cook, translator and general factotum to James.

The two begin to fall in love, but the eruption of Vesuvius triggers a chain of explosive events that will force the two to flee behind enemy lines and will alter their lives immeasurably.