Hubertus Bengsch

A German U-boat crew experiences the terror and claustrophobia of life on a submarine in the Battle of the Atlantic. They face the constant threat of attack from enemy ships and aircraft, as well as the psychological strain of being confined in a small space for months on end.

"The Boat" is the story of the crew of one of the thousands of U-boats deployed by the Germans in World War II. Subject to countless hours of claustrophobic confinement and unending assault by enemy ships, the crew struggles for survival. (imdb)

The name is a myth. Their steel was considered the strongest in the world. The family Krupp was the most powerful and successful industrialist dynasty. The film concentrates on the family history throughout the 19th and 20th century and how it is intertwined with German history.