"Ambush"

In "Ambush" 18 September 1967, the second episode of the third season, Victoria reunites with Simon Carter, who she met in "Pursuit", 10 October 1966, the fifth episode of the second season.

The location of both episodes is near the town of Sandhill, which is probably fictional.

"Ambush" happens a year after "Pursuit", and also some time after Porfirio Diaz became ruler of Mexico. Simon says that the Yaquis have been crossing the border into the USA since Diaz took over in Mexico. Diaz became president in 1876.

I note that the Barkley ranch is supposed to be near Stockton, California. Stockon is about 425 miles from the closest point on the US/Mexican border near Tijuana, and about 1,570 miles from the farthest point on the Mexican border near Brownsville, Texas. Of course Sandhill could be tens or hundreds of miles north of the Mexican border, but the farther from the border it is the less likely the Yaquis would be to travel that far within the US.

"Ambush" opens when Victoria arrives in Sandhill, and the action takes only two or three days. Audra decides to follow Victoria and takes a train part way, and then a stage to Sandhill, and arrives in a buggy at the mission at the climax of the episode.

And it seems rather hard to believe that Audra's trip that far south, including tens or hundreds of miles by stagecoach, could take only one, two, or three days. The episode would have made more sense if the first scene had Audra decide to follow Victoria, and the second scene had Victoria arrive in Sandhill sometime after Audra had started to follow her.