Shootout at Diablo Station - S2-E11
Plot hole: Well within earshot of the others in the small room, Curry comments to Heyes (purely for the viewers' benefit, since Heyes already knows it) that if Lom Trevors is killed, their amnesty will go with him. This information should have blown their cover, but for some strange (and unbelievable) reason, no one wonders what he's talking about. (00:19:00)
Only the Bad Come to Sonora - S4-E3
Plot hole: Manolito trades clothes with the poor peon he meets on the road. But at the end of the episode, he has the same clothes that he gave away earlier (his usual outfit) back on again.
The Raccoon - S1-E10
Plot hole: The plot gets confusing here. First, Laura and Jack (the dog) are rabidly bitten by Jasper (her pet racoon). The doctor warns they may have rabies from the bite. A second more dangerous raccoon is discovered which eventually left the area. In the end, Charles (discovering there were two raccoons in the barn after finding Jasper remaining), says Laura is going to be OK after all. The main confusion is that Laura would still be in danger from the bite regardless of which untested raccoon bit her.
Plot hole: In the ending scene, Mike has a probable concussion from her fall, so Sully keeps her awake to prevent her slipping into a coma. They talk all night, reminiscing as Mike experiences periodic pain spasms. Their talk ends with discussion over them having another child, and then they instantly engage in an intimate moment, which would be impossible, considering her condition, and without further checkup from another doctor. Sometime later she is suddenly feeling 'cured', and they return home.
Plot hole: When the bandits attack the pioneer's wagons they are chased on horseback by the Captain, Jack and others for quite a distance until Ennis is killed in the confrontation with one of the bandits. In the following scenes Elsa is mourning over his body but her mother and others from the wagon train stroll up and the wagons are in the background-all this after a fairly long chase.
The Night of the Raven - S2-E3
Plot hole: Antoinette is making miniature clothes for the soon-to-be shrunken West, but when West drinks the antidote to make him normal-sized, he is wearing the same clothes which would have been shredded as he grew back to normal size.
Something Hurt, Something Wild - S8-E1
Plot hole: Laurie Ferguson is outside the Ponderosa ranch with Joe Cartwright. In an attempt to frame him for sexually assaulting her, she begins screaming. She emits six loud piercing screams before the scene shifts to Ben, Hoss and her father and brother inside the home. It is not until her seventh scream that the four men look up and start to run outside.
Grass on the Streets and Weeds on the Rooftops - S4-E10
Plot hole: Beth surprises Jamie in the act of disposing of his father's body at the train station. But Beth doesn't learn about the train station until season 5, episode 8. So, how did she know where to catch Jamie in the act?
Plot hole: When Ellie leaves Ft. Smith on a whiskey boat, she's just been seen with the morning sickness a day or two before. When she leaves the whiskey boat, somewhere between Arkansas and Nebraska, she says she's pregnant but is not showing at all. Even the snaggle-toothed frontier weirdo played by Steve Buscemi remarks that, "You ain't gonna be havin' no baby fer a while yet." The day she gets to Clara's, near Ogallala, Nebraska, she has the baby. Pregnancy lasts nine months. Morning sickness usually begins at about six weeks into it. Ft. Smith, Arkansas, to Ogallala is 561 miles. Even just walking three miles an hour for eight hours a day, one could make it in less than a month. But going via boat and mule-drawn wagon took her over seven months?