A gunman receives a request for help from his brother, but arrives too late to save him from the lawless rancher who wanted him dead.

An intrepid radio reporter sets out to track down and expose Nazi agents.

A wealthy woman funds an underwater expedition to explore for marine life, but what she doesn't know is that her "colleagues" have other intentions.

Inasmuch as western star Charles Starrett gained screen fame as the Robin Hood-like "Durango Kid", it stands to reason that Starrett would head the cast of Robin Hood of the Range. The star plays Steve Marlowe, the foster son of railroad manager Henry Marlowe (Kenneth McDonald). When it becomes apparent that the railroad is using underhanded methods to drive local homesteaders off their land, Steve adopts the guise of "The Vulcan", a legendary champion of justice.

In this western, three Texas Rangers decide to do their part to save the world and join the Army, but before they can, they are sent to Alaska to destroy a secret Nazi operation involving a submarine refueling station. The outpost is located behind an impenetrable tangle of barbed wire. The rangers get a little help, and discover a traitor. Then to get through the wire, they start a cattle stampede and save the day.