Submarine sneaks through the straight of Juan de fuca undetected

On the night before he sails in search of the steamship Arcadia's sunken gold, Paul Sinclair (Bruce Bennett)meets Madeliene Nielson (Anita Louise) in a San Francisco nightclub. On the second day at sea, Madeliene turns up as a stowaway. While diving and searching for the sunken gold, off the Phillipines, Paul discovers that a foreign-country submarine has been laying mines in order to completely cut off the Phillipines from American protection.

For his first command in the Pacific war a by-the-book officer is ordered to take his submarine on a reconnaissance mission to locate a fleet of Japanese fighting ships the Allies have lost track of. At first, the rest of the crew resent his distant manner and the way he keeps avoiding taking on the Japs.

Posing as an ex-German medical officer, a U. S. Navy Intelligence Officer sets out to rescue a kidnapped scientist, and sink a Nazi submarine, hiding off the coast of South America.

An Admiralty film depicting the functionality and uses of the submarine including an underwater attack on an "Hun" convoy and a surface attack on an U-boat.

Showcases life and operations on a submarine of the Typhoon-class, to this day the largest class of submarines ever built.

You can’t see them. You can’t hear them. And you never know exactly where they are. The life of submarines is secret and fascinating. In this film, we go inside one of the French navy's legendary vessels, the Rubis, and to where the next nuclear submarine, the Barracuda, is being built. From technological prowess to human exploits, the film submerges us in a timeless amphibian adventure.