A World War II submarine commander finds himself stuck with a damaged sub, a con-man executive officer, and a group of army nurses.
A locksmith is pressured into crime when the mob makes him perform an elaborate bank robbery.
Former Coastguardsmen Jim Benson is about to lose his boat when a couple approaches him for a fishing charter. Jim departs just ahead of the Sherrif with drunken Shanks, and his companion Sally (Gates). Shanks takes off into a small Mexican village after a fight with Jim, stranding both Sally and him with no money. Two local men hear of Jim's plight, and offer him money to smuggle a batch of illegal aliens, called Wetbacks, into the U.S. He agrees but is blackmailed into continuing to run the smuggling operation. Afraid, Jim decides to make a run for it, but someone close to him reveals themselves as a US Immigration agent and asks him to assist them in shutting down the smugglers for good.
Down-and-out artist Joe Manning wakes up from a night of drunken revelry in a jail cell, where he's being held on suspicion for the murder of a nightclub singer.
Dan Roman is a veteran pilot haunted by a tragic past. Now relegated to second-in-command cockpit assignments he finds himself on a routine Honolulu-to-San Francisco flight - one that takes a terrifying suspense-building turn when disaster strikes high above the Pacific Ocean at the point of no return.
A C-47 transport plane, named the Corsair, makes a forced landing in the frozen wastelands of Labrador, and the plane's pilot, Captain Dooley, must keep his men alive in deadly conditions while awaiting rescue.
Just before the Civil War (but after the South has seceded), Southern saboteurs try to prevent railroad construction from crossing Kansas to the frontier; army captain Nelson is sent out to oppose them. As the tracks push westward, Nelson must contend with increasingly violent sabotage, while trying to romance the foreman's pretty daughter Barbara.
House Un-American Activities Committee investigators Jim McLain and Mal Baxter come to post war Hawaii to track Communist Party activities even though belonging to the party was legal at the time. They are interested in everything from insurance fraud to the sabotage of a U.S. naval vessel.