The film is based on historic deeds,thus the construction of new U-boats continued at a record -breaking during WWII. In 1942-43 Hitler raised enormously his U-boat strength,the German submarines sank numerous ships,in early 1943 the called ¨Wolf packs¨sank 90 ships in 20 days.Then,suddenly ,between March and June 1943,an exceptional change took place .The Allies began to win the war against Hitler's underwater in the Battle of the Atlantic.By this time the technique of submarines warfare had advanced far beyond that used in the beginning the war.The Allies pitted thousands of boats,seamen,destroyers,cruisers,subs,cannons and billion of dollars against the undersea craft .As early as December 1943 Karl Doeniz ,the architect and designer of U-boat campaign,admitted the grave turn in events.The cost was great on both sides .In the six years of war ,the Germans,by their own statistics,destroyed more than 2000 British,Allied ships in the sea.Hitler had built 1162 subs ,of which 783 were lost.Of the 41000 men recruited into the underwater service ,between 28000 and 32000 lost their lives and 500 were taken prisoners.
The picture narrates as the USS Swordfish underwater commanded by Cmdr Randall(Scott Caan) and the sergeant(William H. Macy)and with the crew(Jeremy Sisto,Sam Huntington among others)is sunk ,then they are captured by a Nazi U-Boat 424 commanded by a captain(Til Schweiger) and officer(Thomas Kretschman). The Americans led by the sergeant try to take over the German sub and to make their way back home confronting against Nazis sailors ,through enemies destroyers they manage to arrive at three hundred miles US coast.The movie contains nail-biting action,drama,suspense in a claustrophobic atmosphere although complemented with some of archive stock footage.
The film provides a realistic detailing of life aboard and a portrait about the crews subjected to stressful and psychological tensions.In fact the sailors had sleep in shifts.For months they were lodged in close quarters because every inch the space was needed for machinery,supplies and torpedoes.The air was heavy with odors from bilges,diesel oil and unwashed bodies.The men faced sudden death from depth charges ,aerial bombing attacks or the sharp bow of a swift destroyer as happen in this film.
