Mexican families are being forced off their land by the Saxon's who come to colonize this underpopulated state. Two Mexican families, the Iturraldes and the Villareals, find their peaceful existence shattered when they refuse to sell their ranches to the Mackenzies, an Irish family who will stop at nothing to get what they want. And what they want, lies deep in this extensive and fertile land... oil.
Zandy Allan purchases a mail-order bride, Hannah Lund. He treats her as a possession, without respect or humanity, until their shared ordeal as they struggle to survive develops in him a growing love.
Bad guys plot to trick a newly arrived Eastern girl out of a ranch which belongs to her infant ward. Roy, of course, saves the ranch for the girl. Songs include "I'm Headin's for the Home Corral," "He's a No Good Son of a Gun," "Sandman Lullaby," "Song of the San Joaquin," and "I'm a Cowboy Rockefeller."
After the Civil War, ex-Union Colonel John Henry Thomas and ex-Confederate Colonel James Langdon are leading two disparate groups of people through strife-torn Mexico. John Henry and company are bringing horses to the unpopular Mexican government for $35 a head while Langdon is leading a contingent of displaced southerners, who are looking for a new life in Mexico after losing their property to carpetbaggers. The two men are eventually forced to mend their differences in order to fight off both bandits and revolutionaries, as they try to lead their friends and kin to safety.
In this western, a frontier detective disguised as an entertainer performs for the leader of an outlaw gang. At the same time, he learns the whereabouts of the outlaws' hideout. Unfortunately, his true identity is revealed and he must escape if he is to bring the gang to justice.
It's 1860 and the old Spanish land grants are being surveyed. Montez is after part of Don Regas' rancho and gets the surveyor to alter the boundary. But Don Regas still has the original grant written on a bandanna. Montez sends Indians after it but Bill Cody and Gabby fight them off and a wounded Gabby unknowingly ends up with the missing million dollar deed wrapped around his arm for a bandage.
Carefree Chuck Connor is on his way west and stops off to see an old friend and his four lads. When his host is killed in a riding accident Chuck realises he must take care of the family. They hit the road and he takes a job on a ranch, but he has to keep the children hidden as his boss hates kids. There's also tension with the neighbouring ranch, and when a girl on the run from her nasty uncle joins the family unannounced Chuck wonders what he has done to deserve all this.
Bolton's men blow up the wagon carrying the mine payroll and Marshal Crash Corrigan is supposedly killed in the explosion. A man finds his badge and gives it to Bolton. Thinking Crash dead, Bolton gives the badge away and it ends up with the Sheriff. Crash is OK and the Range Busters know Bolton is the head of the gang but that he gets his orders from someone else and that is the man they want.
Tod Walker takes Rex Carson's map to a gold mine and leaves him in the desert. Carson recuperates at Jean Walker's ranch and she takes a liking to him. But when her uncle Tod arrives, he claims Carson tried to jump his claim. She sides with her uncle and Carson, banished from the Walker ranch, sets out to get his claim back.
The notorious outlaw Black Bart has reappeared and the Range Busters are sent to investigate. When they find that Black Bart is now a respectable citizen and that someone is impersonating him, they set a trap for the robber.
Two prisoners, Steve Brandt and Nick Montana, chained to each other, escape by jumping from the train that brought them to the penitentiary. Persued, they hide in the carriage with Jane Langton. Arriving at her ranch, they discover that she is fighting against a Pete Sutton, who wants to take her pasture. Not wanting to confront, Sutton offers the two escapees help by assisting them move to Mexico.
Hester and Hezekiah plan to get Dorothy Horton's inheritance. But when Pete and his men rob the stage they learn of the scheme and send Jim to replace Hezekiah. The Deputy Marshal breaks this up but Black Pete arrives wearing the Marshal's badge and has the Sheriff take him away while he flees with the inheritance money.
Lawman Wyatt Earp and outlaw Doc Holliday form an unlikely alliance which culminates in their participation in the legendary Gunfight at the O.K. Corral.