A thug robs and kills a fur trapper. He is caught and locked up by the Mounties, but is soon broken out by his partner. As the Mounties investigate, they discover that the two are part of a ruthless crime ring run by a female gangster.
When the Ranger Sergeant returns murdered with a note that LaFarge did it, Trooper Burke sets out to after LaFarge. Working undercover, he saves LaFarge's life and this gets him into LaFarge's gang. He then arrests LaFarge and brings him in only to learn that LaFarge is not only innocent but is now a prisoner of the real killer.
A villainous banker and his hired saboteurs attempt to thwart construction of Sweetwater Dam.
A cowboy is framed for the murder of a rancher, which was committed by a landgrabber. The cowboy must clear his name and bring in the real killer.
Three men escape from prison, go back to their hometown to try to find out who framed them.
A group of thugs tries to steal the cursed title gem from a jeweler who has been hired to cut it into small, saleable pieces.
A Royal Canadian Mountie is assigned to bring in a criminal called "The Raven." The problem is that no one has ever seen him.
A cowboy realizes too late that his girlfriend's father had been cheated out of everything in a crooked card game. He sets out to get revenge on the crooks.
An agent tracking down a man who disappeared in the mysterious "Ghost Mountain" area discovers discovers the hideout of a gang of murderous outlaws.
A Treasury Department engraver is being held captive by a counterfeiting gang that wants him to make counterfeit plates for them. A lawman is sent to rescue him.
A western town is being overrun and ruled by a gang of outlaws led by Bart (John Merton). Former Ranger Tim (Tim McCoy) is called out of retirement and assigned to clean up the gang. He disguises himself as a Mexican bandit, joins the gang and works from within.
Sinclair has a government lease on range land that is about to expire. George Ringold wants the land and hires Roberts and his men. But they turn out to be a gang of killers and trouble soon arises.
A Mountie sets out to infiltrate and break up a gang of counterfeiters.
Wildcat riggers risk their lives in the pursuit of oil. Their jobs get even more dangerous when ruthless oil baron J.C. Anderson sets his sights on their territory. When longtime driller Dan O'Reilly falls to his death from a well tower sabotaged by Anderson's strong-arm thugs, his teenage son 'Fishtail' inherits the property and the troubles that come with it. With the help of his geologist pal, Hank Langford, the boy fights to bring in a gusher before the deed to the well-site expires.
Learning of Walters' inheritance, Larson kills him and assumes his identity. When Larson's men try to kill Walter's niece Lola, Jack Lane breaks it up. This leads to a showdown with Jack outnumbered by Larson and his gang. Having saved Loma's life earlier, he has Fuzzy ride for him and his men.
Tim Hart (Tim McCoy), a former Texas Ranger, comes out of retirement to avenge the death of Lightnin' Ed (Frank LaRue), his foster father, who had been sent to Rainbow's End, to investigate a series of train robberies. He senses that George Johnson (Walter McGrail) and his henchman, Speck (Bob Kortman), head the robbery gang, especially after Speck makes an ambush attempt on his life.
Lynne Reed, Jack Manning's fiancée, is stagestruck and wants to go to New York for a career. She is encouraged in this delusion that she is a great actress by Barnes, who offers to buy her ranch, cheaply of course, so she can have enough money to get to the Big City. Barnes has Jack thrown into jail on a trumped-up charge of cattle rustling, and organizes a lynching party to get Jack permanently out of the way. Things get more complicated when Buzz, Jack's pal, discovers the secret of Lynne's ranch. How he engineers Jack's escape, and how they save Lynne adds suspense to a surprise climax.
A Texas Ranger is faced with the task of bringing his outlaw brother to justice.
A cowboy's brother falls in with a gang of thieves; when he tries to get his brother out of the gang, the gang orders his death--and tells his brother to kill him.
When Jim and Scrubby arrive to see Scrubby's sister, they find her murdered and suspect it was her no good husband Jake. But Jake and his men have just robbed the stage and two dectectives arrive looking for them. Finding Jim and Scrubby instead, they assume them to be the outlaws and arrest them.
