Hot on the heels of Frontier Pony Express came the equally exciting Roy Rogers vehicle Rough Riders' Roundup. In the first film, Rogers was an express rider during the Civil War era; in the second, he's a veteran of the Spanish American war (ubiquitous fellow, isn't he?) With several of his fellow Rough Riders, Rogers joins the Texas border patrol, where he almost immediately clashes with a villain named Arizona (William Pawley). While maintaining a respectable facade, Arizona and his minions rob the stagecoaches and express offices, divesting the local prospectors of their hard-earned gold. With the help of grizzled old sidekick Rusty (Raymond Hatton)-not to mention the rest of the Rough Riders-Rogers crushes Arizona's operation once and for all. The film boasts two leading ladies: Rogers' usual vis-a-vis Mary Hart, and former silent star Dorothy Sebastian, here making a comeback attempt.