A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.

A badly injured fugitive explains to a priest how he came to be in his present predicament.

After her father is murdered, a girl joins the police force in an effort to track down the killers.

A homesick American soldier stationed in England during World War II makes an unauthorized trip to see his wife and returns to England with only two people knowing he was home for a few hours. When she learns that she is pregnant, she does not disclose that her husband had paid her a visit as to not get him into trouble. The townspeople are unanimous in their condemnation of her. But, after his discharge, he enlists the aid of a nightclub singer, the only other person who knew he came home.

Larry Morgan, a private detective, is hired by a woman who wants Larry to trail her husband. The husband is murdered and, shortly afterwards, the wife is also killed. Larry shuffles through a long list of suspects before revealing the killer...

Indian scout Tom Jeffords is sent out to stem the war between the American settlers and Apaches in the late 1870s Arizona. He learns that the Indians kill only to protect themselves, or out of retaliation for white atrocities.

A sheriff's son is falsely accused of murder, and a friend determines to clear his name and find the real killer.

Rancher Rex Allen receives a summons from his uncle. an old time frontiersman, that he is in trouble. The uncle has been hired to lead a modern-day band of adventurers on a wagon train retracing the route taken by their ancestors 100 years ago. Before Rex can talk to his uncle, the uncle is murdered, and Rex sets out to find the killer and the motive by taking his uncle's place as the leader of the wagon train.

Career gambler Dan Milner agrees to a $50,000 deal to leave the USA for Mexico, only to find himself entangled with fellow guests at a luxurious resort and suspecting that the man who hired him may be the deported crime boss Nick Ferraro aiming to re-enter to the USA.