This novel details moment by moment a trans-Atlantic convoy cruise during World War II. Vividly described with the accuracy of nonfiction are the complex manoeuvres with which the convoy commander shepherds his close-packed flock of 37 escorts and tankers as they evade or occasionally destroy the deadly U-boats of Hitler's infamous wolf packs. The reader experiences the action from the perspective of the man who alone bears the ultimate responsibility for the fates of the 3,000 men under his command, as well as countless other lives dependent upon the safe arrival of the convoy's cargo; this novel explores the decision-making process of the commander who must thoroughly analyze all the tactical and moral element of each situation yet act in seconds with unflinching decisiveness. From start to finish it is a suspenseful, compelling account of naval training, seamanship, and self-discipline put to the ultimate test. The novel was widely acclaimed for its authenticity, accuracy, and detail.