Ships disappear on route across the Arctic Sea, and a special submarine is sent to investigate.

Story of twin brothers - one trying to help the other escape from prison.

X-15 is a 1961 movie that tells a fictionalized account of the X-15 research rocket plane, the men who flew it and the women who loved them.

Action Western directed by Edward L. Cahn . After courageously protecting a pretty dance hall girl (Joan Staley) from peril, former cavalry soldier Wayne (James Brown) refuses to join his brother Brad's (Gregg Palmer) unlawful cattle rustling gang, which leads to heated disagreements, bitter betrayals and life-threatening danger.

Lieutenant Braden discovers that Sally, the woman he's been falling in love with, has actually been checking out his qualifications to be a U.S. Navy frogman. He must put his personal life behind him after being assigned to be smuggled into a Japanese-held island via submarine to photograph radio codes.

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.

Professor Fergusson plans to make aviation history by making his way across Africa by balloon. He plans to claim uncharted territories in West Africa as proof of his inventions worth.