Spain, in the year 1939. The civil war is over, and of the soldiers of fortune, who came from all parts of the world to join in the conflict, only a few remain, waiting to be written off in a military prison near Madrid. One of these is the American aviator, Tom Martin. He has been sentenced to be shot by the firing squad, and he spends his last few hours in a game of solitaire, whilst near the barred window, a priest stands looking at him with sorrowful eyes...