It's July 1943, and British wounded are being evacuated from Sicily. Quite the sobering sight to contemplate. When the invasion began, a hospital ship was sunk by the Germans. Imagine how cruel a fate that must seem... you're wounded but rescued, you're going to live, you might even get to go home honorably. Then the enemy is sighting approaching the hospital ship you're on. It's like shooting up an ambulance, even by the lax moral standards of war.