Following the murder of her father through employed hand Tom Chaney, 14-year-antique farm woman Mattie Ross units out to capture the killer. To resource her, she hires the toughest U.S. Marshal she will locate, a man with "real grit," Reuben J. "Rooster" Cogburn. Mattie insists on accompanying Cogburn, whose drinking, sloth, and generally reprobate person do not increase her religion in him. Against his desires, she joins him in his trek into the Indian Nations searching for Chaney. They are joined via Texas Ranger LaBoeuf, who wants Chaney for his very own functions. The not going trio find threat and adventure on the journey, and every has his or her "grit" tested.