An adventurer investigates the theft of a formula for hardened steel, assisted by his girlfriend.

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.

Ace reporter Curt Devlin and fellow reporter Ellen Garfield love one another, but Curt believes women are "bum newspapermen". When a murder investigation ensues, the two compete every step of the way, determined to not be scooped by the other.

A reporter gets the best story of her life when she goes under cover to take down the head of a crime syndicate.

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 wealthy family is blackmailed. Murder results. And a nurse at the scene of the crime is determined to figure out who-done-it.

The Good Comrades are a collection of varied gentlemen who crave one thing - solitude. They reside at Drearcliff House, ancestral home of their eldest member. All seems serene and convivial until one by one the members begin to perish in the most grisly of manners. Foul play is suspected by the Good Comrades' insurance agent, who turns to Sherlock Holmes and Dr. John Watson for guidance.