As a boy, Shamrock's parents were killed. He took possession of a pistol belonging to his father, a famous marshal. Now that he is grown, he takes the job of marshal and uses the same gun, but he still has to solve the mystery of what happened to his parents.
When Billy Carson's uncle is lynched as a supposed rustler, Billy arrives looking for the murderers. He finds that Steve Kirby holds a forged note on his Uncle's ranch. When Kirby sees that Billy means trouble for him, he has him framed for murder. Then just as he is inciting the mob to lynch him, Billy's new friend Doc Jones is trying to break him out of jail.
Charles Starrett stars in the lightning-paced Columbia western Riding West. Somebody is planning to sabotage the new Pony Express mail service, and hard-ridin' Steve Jordan (Charles Starrett) aims to find out who.
The outlaw Stragg has the town so intimidated that no one will speak against him no matter what he does. Sheriff Young heads for a nearby town, where there is a witness willing to testify. Meanwhile, Stragg hires a gunman to take care of the sheriff and the witness.
Buffalo is banished to the wilderness after playing a nasty practical joke on his rancher father. During his exile, Billy meets and falls in love with pretty Patricia Farris, who sadly rejects him when he tries to steal a kiss.
On the day of Pedro Boiadeiro's wedding, a band of cangaceiros who survived the Angicos massacre invade his home, then proceed to beat him up, and abuse and murder his wife. Pedro sets out to get revenge on each one.
A rancher who has staked a claim during the California gold rush goes after the gang of murderous claim-jumpers who have stolen his claim and murdered his wife.
Cowboy star Buck Jones made his directorial debut with the Universal western For the Service. Jones is cast as Indian scout Buck O'Bryan, trying his best to keep the peace between the Native Americans and a government outpost. O'Bryan is replaced by George Murphy, the son of commanding officer Captain Murphy. Obviously unqualified for his job, Murphy proves himself a coward and a weakling, forcing O'Bryan to take over when the fort is besieged by outlaw Bruce Howard and his gang.
The Rangers have planted wanted posters of their man Tom Logan around hoping he can join the outlaw gang they are after. Robbing the stage ahead of the gang gets him in and he learns Keefe is the boss. When it's time for the big bank robbery Keefe puts Tom in charge but secretly tells a henchman to kill him during the holdup.
A forger has made a copy of a Spanish land grant and Arnold is after it. Arnold and his men attack, shoot the forger, and take the deed while Russ tries unsuccessfully to stop them. Arnold presents it at the recorders office. It appears authentic and he starts evicting ranchers from their land. But Russ knows something is wrong as one of Arnold's men was a man he fought with during the attack.
Tom Cameron, aka the Lone Rider, and his faithful sidekick, Fuzzy Jones, flee across the Rio Grande to avoid assassination by crooked lawman Deputy Hatfield, only to have the Mexican cops accuse Cameron of being the notorious bandit El Puma. At Hatfield's behest, they are also accused of kidnapping the local mayor's son, and now the pair must prove their innocence and find a way to stop Hatfield's lawless ways.
Delmar Spavinaw, an educated "half-breed," loves Evelyn Huntington, daughter of a racist judge. Evelyn's other suitor is Ross Kennion, a widower with one child, and owner of a vast tract of land which Spavinaw insists belongs to his Indian mother. Spavinaw seeks revenge when Judge Huntington decides to evict the squaw. Assisted by Juan Del Rey, a cattle rustler, Spavinaw steals the title to the land, wounds Kennion, stages a raid on the judge's cattle, and attempts to kidnap Kennion's son and Evelyn. The arrival of the sheriff forces him into flight across the border without his hostages. En route he meets Doll Pardeau, a school friend of Evelyn's, and together they ride for the Mexican border. Caught between a cattle stampede and a sheriff's posse, the couple catch a passing freight train, leaving calamity behind as the train slowly passes.
Dissension arises between cattlemen in Osage County, Texas, and sheepherders who have settled there and use the same watering stream. Mart Dalton, son of a wealthy cattleman, quarrels with and kills one of the settlers, thus placing sheriff Larry Williams in a delicate position; for he is Mart's best friend and is engaged to Mart's sister June. However, sworn to do his duty, he arrests Mart, incensing the cattlemen, who help Mart escape, leaving Larry wounded.
Markham and his men have found gold on the Indian reservation and are trying to get rid of them by starting an Indian war. Dressed as Indians they are attacking the soldiers. Steve Holden is the Indian agent sent to prevent a war. After finding proof that white men posing as Indians were responsible, he is able to locate the gang's hideout but quickly becomes a prisoner slated to be killed. - Written by Maurice VanAuken
Tom Hardy (Tom Mix), a pony express rider, is carrying government gold in a coach to Wassatch accompanied by Alice Calhoun (Sharon Lynn) , the daughter of the US telegraph survey station. The gold is to pay for the US Telegraph Survey and it is to be delivered to the survey chief, Jim Calhoun (Thomas Lingham). The coach is attacked by bandits led by the Slade (Duke Lee) and Kane (Mark Hamilton).
Gene Autry is back in the saddle again as an undercover detective in this action-packed Western complete with a showdown. Gene poses as a jailbird to wangle the truth from a boy (Dick Jones) suspected of stealing an Army payroll. When the youngster escapes from lockup and rejoins his family's medicine show, intrigue is in the wind as Gene tries to solve the mystery of the missing money and to save the lad from a vicious mob. Pat Buttram co-stars.