Reb Russell (Reb Russell), undercover agent for the Cattleman's Protective Association, goes into the stronghold hideout of rustler chief Bull Thompson (Fred Kohler) posing as an outlaw. He falls in love with Marion, Bull's step-daughter. Juan (Dick Botiller), a gang member once jailed by Reb, reveals Reb's true identity, but he will be given his and Marion's freedom to leavy the valley if he can beat Thompson in a fight. He does, but Butch Greer (Jack Rockwell), a gang member trying to take over from Thompson leads the gang after the pair, after first revealing to Thompson that Reb is Thompson's own son, whom he last saw as a baby when Thompson, then known as Big Bill Russell,was forced to flee the law. Thompson and loyal gang member Blackie (Edmund Cobb), who was once helped by Reb, go after the gang in an effort to help Reb and Marion escape.
A caravan of settlers is arriving and the ranchers intend to keep them out. It looks like a range war but Sheriff Jim gets the ranchers to accept the settlers.
Steve Beaumont, an operative for the Cattleman's Protective Association, is assigned the difficult task of breaking up a murderous gang of rustlers led by Ed Brock and Strang.
An operative from the Wells Fargo company goes undercover to trap a crooked sheriff and his equally nefarious hirelings in this standard B-Western from A.
Arriving at Medicine Bow, eastern schoolteacher Molly Woods meets two cowboys, irresponsible Steve and the "Virginian," who gets off on the wrong foot with her.
Cheyenne joins El Diablo's gang looking for his long time missing wife and daughter. After saving Romero from the gang he returns to get Connie who he now realizes is his daughter.
A miner who was swindled out of his mine by a banker turns to robbing stagecoaches. Several years after he is tracked down and killed, his son comes to town to tangle with the banker.
Evelyn Vail (Florence Rice) is a nurse convicted of poisoning a patient. Out on parole, Evelyn decides to fly to Sing-Sing and confront death row inmate who accused her of the deed in the first place.
Greed, ambition and hunger-for-power drive John Hart, a New-York-City stock-market broker, into crooked dealings and deception, but he doesn't realize that those he ruined will seek vengeance.