Factual error: Billy Claiborne, the only member of the Clanton gang to survive the O.K.Corrall shoot-out, is conspicuous by his total absence in this story. Maybe that's how he survived?

Revealing: The "American" accents in this episode are all over the map and frequently inconsistent within the same scene.

Plot hole: The Clantons are amazingly bad shots. The Earps walk slowly down the street at the start of the climactic gunfight and don't get hit even once by the hail of gunfire.

Continuity: The six-shooters, in the climactic gunfight, fire off a lot more than six shots without reloading.