Set on the Mexican border in 1850, Bad Men of the Border was the first of seven Universal Westerns starring handsome Kirby Grant, a former singer from Montana who had earlier acted under the name Robert Stanton. The series, Universal's last attempt at competing with Republic Pictures' many streamlined B-Westerns, also featured the bucolic Fuzzy Knight as Grant's sidekick. Grant and Knight are undercover U.S. marshals tracking down a gang of counterfeiters. To their surprise, they are soon assisted by a beautiful Mexican dancehall performer, Dolores Mendoza (Armida), who proves to be an undercover agent as well, in her case for the Mexican rurales headed by Captain Garcia (Francis McDonald).

In this western, the hero fights the bad guys by impersonating the son of a rancher. The outlaws have been making the good landowners pay fake taxes. Not only does the good guy succeed in catching the bad guys, he also catches himself the postmistress.

In this musical comedy, a young singer becomes so desperate to appear on Broadway that she goes to a prominent producer and tells him that she is the daughter who resulted from his day-long marriage to a young woman he knew years ago. The producer is delighted and soon puts his daughter up on stage. The trouble begins when the girl's "mother" suddenly pays a call. For her own reasons, the woman decides to play along with the girl's ruse. Fortunately, by the story's end, the truth is revealed, all differences are reconciled and happiness ensues.

A debutante, a serviceman's bride and a girl from a military family join the Women's Army Corps.