Book by D.F. Gibson's is a vivid and fascinating eyewitness account of the enormous contribution of the British submarine fleet to the common cause of victory in the Second World War. The author describes the training of young sailors and the daily life of the crew of the submarine on which he had the opportunity to serve, combat patrols, attacks and counterattacks in which he was a participant, as well as joys and defeats, everyday life at sea and holidays from the first days of the war until the complete surrender of Germany.