A scientist carrying the secret to a new high-powered explosive must be safely escorted to Washington and ace pilot Bob "Three Star" Halsey is the best man for the job. Moments before takeoff, crooks take control of the flight and steal the formula. Halsey watches helplessly from the ground as the plane goes down in flames and the thieves esape by parachute. His sweetheart Judy, whose brother was also aboard, races to the crash site, only to be kidnapped by the villains. Halsey and his co-pilot Wings risk everything to save her, calling on their world-class flying skills in the film's terrifying finale.

Sam Gallagher returns home to Los Angeles as an undercover spy for the Navy, getting a job at the shipyards where his brother, Jeff, is a foreman. Jeff still resents Sam for abandoning the family years ago and fears he may steal away Lea Damaron, his current girlfriend -- who is Sam's old flame. While Sam tries to sniff out Nazi saboteurs in the plant, he grows closer to Jill McGann, the agent tasked with pretending to be his wife.

The Pony Express is finished as the Post Office plans to award the mail contract to a stage line. Bill and his father put in a bid for the mail, however there are three bids close together. The officials will run a race to pick the winner, and the Banton Brothers sabotage Bill's stage. Mary still believes in Bill until they try to get rid of him by holding up the regular stage with his well-known horse. Bill needs proof to clear himself and expose the bad guys.

Adults who grew up as slum kids meet later in life, but murder disrupts their reunion.

Framed for two crimes he didn't commit, and betrayed by his girl, Cliff Banks finds himself on the run from the police. Now distrustful of everyone, he finds a safe haven hiding out at a quaint country cottage under the care of a kindly old farmer and his daughter, a Cinderella-like blind woman who seems to be able to communicate with nature. There he is forced by their love to question his misanthropy.

A U.S. Navy crew aboard a merchant marine ship battle Nazis.