Weather-beaten Harry Carey stars as an old-time Westerner who ends up in jail on a trumped-up charge. Carey busts out of the calaboose to prove his innocence and unmask the genuine culprit, Albert J. Smith. It turns out that Smith is in league with a mysterious frontier Fu Manchu, who's been operating a lucrative alien-smuggling racket. Our hero likewise reveals the identity of the mystery villain, who spends most of the picture as a mere shadow on the wall. Based on a novel by Murray Lenister, Border Devils evidently underwent a great deal of rewriting from script to screen, if its pressbook (containing an entirely different synopsis) is any indication. ~ Hal Erickson, Rovi