Cattle baron Matt Devereaux raids a copper smelter that is polluting his water, then divides his property among his sons. Son Joe takes responsibility for the raid and gets three years in prison. Matt dies from a stroke partly caused by his rebellious sons and when Joe gets out he plans revenge.

There's a deficit of good, honest women in the West, and Roy Whitman wants to change that. His solution is to bring a caravan of over 100 mail-order brides from Chicago to California. It will be a long, difficult and dangerous journey for the women. So Whitman hires hardened, cynical Buck Wyatt to be their guide across the inhospitable frontier. But as disaster strikes on the trail, Buck just might discover that these women are stronger than he thinks.

Dardo, a Robin Hood-like figure, and his loyal followers use a Roman ruin in Medieval Lombardy as their headquarters as they conduct an insurgency against their Hessian conquerors.

A posse discovers a trio of men they suspect of murder and cow theft and are split between handing them over to the law or lynching them on the spot.

Rancher Clay Travers finds and brings in the body of ranger Frank Mattison, murdered on the road to Trail City, where he had been sent to deal with an outbreak of cattle rustling. Businessman Art Kenyon, who has hired gunman Ed Martin to impersonate Mattison to further his rustling schemes, quickly changes Martin's story and has Travers framed for the ranger's murder. Managing to escape, Travers must come up with proof to clear his name and bring the true killers to justice.

When Edward Creighton leads the construction of the Western Union to unite East with West, he hires a Western reformed outlaw and a tenderfoot Eastern surveyor.

Running from the law, Jim Hall joins Hays’ gang. Hays is foreman on the Herrick ranch and plans to rustle Herrick’s cattle. Attracted to Herrick’s sister Helen, Jim decides to tell the Sheriff about the raid. But when his plan is overheard he is made a prisoner.

The wall to Surprise Valley has broken, and Jane Withersteen is forced to choose between Lassiter's life and Fay Larkin's marriage to a Mormon.