Frontier Gal

John Breen (John Wayne), a Kentucky militiaman falls in love with French exile Fleurette De Marchand (Vera Ralston). He discovers a plot to steal the land that Fleurette's exiles plan to settle on and aims to foil it.

While passing through the town of Bannock, a bunch of drunken cattlemen go overboard with their celebrating and accidentally kill an old man with a stray shot. They return home to Sabbath unaware of his death. Bannock lawman Jered Maddox later arrives there to arrest everyone involved on a charge of murder. Sabbath is run by land baron Vince Bronson, a benevolent despot, who, upon hearing of the death, offers restitution for the incident.

When an evil contractor goes to extreme measures to evict a testy tenant who is standing in the way of his new project, he fails to take into account that this seemingly harmless old woman is a trained killer and will do anything to protect her beloved home.

The murder of her father sends a teenage tomboy on a mission of 'justice', which involves avenging her father's death. She recruits a tough old marshal, 'Rooster' Cogburn because he has 'true grit', and a reputation of getting the job done.