Major Lex Kearney, dishonourably discharged from the army for cowardice in battle, volunteers to go undercover to try to prevent raids against shipments of horses desperately needed for the Union war effort. Falling in with the gang of jayhawkers and Confederate soldiers who have been conducting the raids, he gradually gains their trust and is put in a position where he can discover who has been giving them secret information revealing the routes of the horse shipments.
Shadrach Jones, ex-Texas State Policeman, has the ruthless determination to find and kill the man who shot his brother in the back and stole the money with which he was to buy a ranch for the two of them. At the saloon-hotel run by Adelaide, Shadrach is convinced that one of the cowhands on the Captain McKellar cattle drive to Montana is his man. He takes the job of trail-herd boss to find the killer. McKellar preaches to Jones that he should forget revenge and let the law of retribution take care of the killer. Shadrach's hard driving of the men and his hunt for the killer makes him bitterly hated, and his retribution quest ends in a manner he did not anticipated.
Rancher Clay Hardin arrives in San Antonio to search for and capture Roy Stuart, notorious leader of a gang of cattle rustlers. The vicious outlaw is indeed in the Texan town, intent on winning the affections of a beautiful chanteuse named Jeanne Starr. When the lovely lady meets and falls in love with the charismatic Hardin, the stakes for both men become higher.
Newly appointed sheriff Pat Garrett is pleased when his old friend Doc Holliday arrives in Lincoln, New Mexico on the stage. Doc is trailing his stolen horse, and it is discovered in the possession of Billy the Kid. In a surprising turnaround, Billy and Doc become friends. This causes the friendship between Doc and Pat to cool. The odd relationship between Doc and Billy grows stranger when Doc hides Billy at his girl Rio's place after Billy is shot.
Drifter Cole Harden is accused of stealing a horse and faces hanging by self-appointed Judge Roy Bean, but Harden manages to talk his way out of it by claiming to be a friend of stage star Lillie Langtry, with whom the judge is obsessed, even though he has never met her. Tensions rise when Harden comes to the defense of a group of struggling homesteaders who Judge Bean is trying to drive away.
The young Austrian princess Marie Antoinette is arranged to marry Louis XVI, future king of France, in a politically advantageous marriage for the rival countries. The opulent Marie indulges in various whims and flirtations. When Louis XV passes and Louis XVI ascends the French throne, his queen's extravagant lifestyle earns the hatred of the French people, who despise her Austrian heritage.
"Red" Davison(Buck Jones), the sheriff of Sun Dog, sacrifices his job and his good name to save his best friend, "Silent" Slade from the hangman's noose, following a framed-up court decision which sentences Slade to hang for the murder of "Scotty McKee (J.P. McGowan). Davidson allows Slade to escape from jail and follows him to aid him in proving his innocence.
A young Navajo defies tribal custom to marry an outcast.
Peace River Parker, foreman of the Cross L Ranch and engaged to Jess, the daughter of the owner, is railroaded into a prison term by the false witness of Jefferson Crane, who covets the ranch and Jess. Through the complicity of Clell Danert, a villainous foreman who also desires Jess, Crane arranges to ruin the Marshall ranch by driving a herd of sheep onto the cattle range.
An epidemic has killed off all of the fertile men on earth, except for Elmer Smith, a hillbilly who lives out in a cabin in the Ozarks, when he is discovered, every woman on the planet begins fighting over him.
On a ranch in Wyoming, one of the cowboys, Cheyenne Harry (Harry Carey), falls in love with his boss's daughter. But she decides to elope to the city with Captain Thornton, a wealthy visitor to the ranch. She quickly discovers that life in the city is not what she expected. Cheyenne, devastated by the loss of his fiancée, decides to go to the city to find her, and in the end rescues her from the grips of Captain Thornton and from the extravagant and decadent way of life in the city.