Although released anonymously, as was the custom with all films produced by the Italian Navy, La Nave Bianca is the first feature-length effort directed by Roberto Rossellini; it is also very much the work of its co-writer and supervisor Francesco De Robertis. The film combines a documentary look at the Italian Navy during World War II with newsreel combat footage and a scripted love story performed by non-professional actors.
Submarine disaster drama made under the auspices of Mussolini's department of defense. During maneuvers a submarine collides with a surface vessel and drops to the ocean floor. The crew have thirty hours' worth of air to get it back to the surface.
Cosimo de' Bardi is assassinated by a gentleman called the Flemish. Time passes and at some point a masked knight wearing a red cloak enters the scene. He is the son of the killed. These and the Flemish are also rivals in love. In the final duel the Flemish will be eliminated.
