After the hero Julio Valiente was ambushed by Señor Escobar, there was no stopping him from being the head of San Basilio and thereby claiming all the lands, when people are tired of his doings a new Julio Valiente appeared in the person of Islaw and saves San Basilio from the tyrant hands of Señor Escobar.
Came a time when these three men namely, Leon Guerrero, Julio Valiente and Geronimo was called by the Alkalde to fight his nemesis but in the end was betrayed by the Alkalde, nevertheless, they were rewarded with the lovely daughters of the Alkalde to be their partners.
Bob Langdon, a young Pony Express rider, is given an appointment to West Point, but is forced to leave the academy as the result of political intrigue stirred up by enemies of his friend, General George A. Custer. Bob returns to the west and is made a scout for Custer's 7th Cavalry. At the Battle of Little Big Horn, Custer sends Bob with a message for aid, and Bob becomes the only survivor of the battle.
Lovers David Lunch and Betty Summers are caught in the feud between their two families. When David kills the Summers son, he escapes to the West. He marries and when his boy is two he and his wife are killed by Indians who take the boy. Twenty years later the boy is now the Indian chief. Betty's daughter is nearby and the two are destined to meet.
Mario, weary of killing for pay, leaves his gang to return home to his wife and son who assumed him long dead. Now he is hunted by both sides of the law and shunned by his wife.
Ben Trego dies defending his twin sons from Indian attack. Separated, the two boys grow up very differently, one as Paul Marsden, the other as a cowboy named Three Word Brand. Paul becomes governor of Utah while Brand partners with George Barton in a ranch. The owner of the adjacent ranch plots to get Barton and Brand out of the way in order to control water rights. When Governor Marsden comes to the area to investigate, Brand sees the resemblance between them, though neither knows about his twin. Brand waylays Paul and takes his place as governor in an attempt to thwart the crooked rancher in the water rights scheme.
When shifty cattlemen Belknap (Walter Miller) and H.R. Shelby (Gordon Hart) are caught shipping infected animals to Mexico, they frame inspector Gene Autry. Now Autry and his sidekick, Frog Millhouse (Smiley Burnette), must catch the bad guys in the act and set things straight. June Storey co-stars as rancher Martha Wheeler. Autry sings "I'm Gonna Round Up My Blues," "Moonlight on the Ranch House" and "Big Bull Frog."
Young Joe is paralyzed as he is bucked by a wild horse, a strawberry roan. Angered, his father, Walt, tries to shoot the horse but is stopped by his foreman, Gene Autry. The roan escapes and Autry, told to leave the ranch by Walt, finds and trains the horse, now named Champ, in hopes that by returning it to Joe it will provide him with the will to overcome his disability.
The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns that Compound X also contains magnetic properties that could aid them in their warfare against the British, they send agents to infiltrate Canada and steal a large quantity of the substance. It's up to Sgt. King (Allan Lane) and his Mounties to track down the agents and put an end to their scheme.
The Utah Kid eludes a sheriff's posse and takes refuge in Robber's Roost, a hideout for outlaws running from the law where he meets and falls for a waylaid school teacher.
When young Johnny York witnesses the murder of his father, he joins a travelling variety troupe and trains up as a sharpshooter so he might one day get his revenge.
Chris and Gordon, temporarily stranded in the desert when their car breaks down, decide to take peyote to kill some time. Unbeknownst to them, the cactus buttons they consume are tickets into another world where lizards talk and demonic forces seek prey.
Buck Duane avenges his father's murder by gunning down the killer, but must flee from the law. He finds Ruth, whom he once loved, in the clutches of the outlaw Bland. In rescuing Ruth, he becomes entangled with Bland's amorous wife.
Fifteen years after their father was gunned down in cold blood, Cashius and Winston Hurley return to their hometown to avenge his death. Joining forces with their cousin Bugsy, the two gun-slinging brothers hunt down everyone involved in their father's murder. As the bullets fly and the death toll rises, the three young cowboys find themselves fugitives from the law, running for their lives and fighting for their revenge.
Jimmy Dixon, pursued by a band of Mexicans, changes clothes with a tramp, who takes off on his horse. Four miles later, Jimmy walks onto the Double-O Ranch, from which he had been thrown off four years before by his dad, who had blamed Jimmy for something that his twin brother Duke had done. Duke, home from college, took over the ranch when Mr. Dixon became ill, and has run it into the ground. When Duke goes to the bank to repay a debt to Jimmy, he rides onto Phoenix with all of the ranch money.
When Red Hawk Dugan and his men attack a small wagon train, Colonel Merriwell is killed and the young girl Isobel taken and raised thinking Dugan is her father. Fifteen years later the Colonel's son Jack arrives looking for Dugan whom he learned killed his father. As he hunts for Dugan he meets and falls in love with Isobel only to then learn Dugan is her father.