The Silent Enemy

It is 1941, and Britain is sustaining serious army losses. Adding to their problems is the new form of warfare invented by the Italians - frogmen - a group of men who travel underwater to vessels and attach explosives onto enemy ships, just below their water line. A young Naval Lieutenant, Crabbe, is a bomb disposal expert sent to Gibraltar to fight the threat. Using the enemy’s own methods, he must destroy an important Italian base to avoid more Allied losses