Delos is a futuristic amusement park that features themed worlds populated by human-like androids. After two patrons have a run-in with a menacing gunslinger in West World, the androids at Delos all begin to malfunction, causing havoc throughout the park.

Jesse W. Haywood (Don Knotts) graduates from dental school in Philadelphia in 1870 and goes west to become a frontier dentist. Penelope "Bad Penny" Cushing (Barbara Rhoades) is offered a pardon if she will track down a ring of gun smugglers. She tricks Haywood into a sham marriage as a disguise. Haywood inadvertently becomes the legendary "Doc the Haywood" after he guns down "Arnold the Kid".

An ex-con seeks revenge on the man who put him in prison by planning a robbery of the latter's stagecoach, which is transporting gold. He enlists the help of a partner, who could be working for his nemesis.

Ass-breaker Dingus Magee is looking for a gold train when he comes upon old acquaintance Hoke Birdsill on stage to San Francisco, and robs him of his money. Hoke goes to the nearby town of Yerkey's Hole, where Belle Knops is both mayor and bordello-mistress. She appoints Hoke Town Sheriff and tries to get him to stir up the Indians so the soldiers at the nearby fort (the main customers) won't go to Little Big Horn. Dingus tries to stir up more trouble and get involved with the pale, baby-talking Indian, Anna. The film is a send-up of the oft-repeated phrase "the Code of the West" and exaggerates it and what it stands for into the ridiculousness that it is.

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.

Some of TV and film's popular western actors reunite in this tribute special hosted by Glenn Ford.

Meeting in a navy recruiting line, Al Crowthers and Melvin Jones become friends. Al has tried to enlist before, but was always rejected. He keeps trying so that he can impress women. Melvin, is allergic to women's cosmetics and his doctor prescribed ocean travel, so he decided to join the navy.

First Sergeant Emmett Bell faces off with Apache chieftain Kamiakin in this nuanced portrayal of racial tensions between Native Americans and white settlers in 1860s Oregon Country.

A sculptor is tortured from childhood by jealousy of the son of the woman who had him trained, but marriage and a family cures him.

A crusty old rancher hires three young women to pose as his daughters. However, the real father of one of the daughters finds out about it, and kidnaps her to hold her for ransom--which the rancher can't pay.