Set in the Wild West, the story follows a young girl named Mattie Ross, who seeks revenge after her father is murdered by an outlaw named Tom Chaney. With a strong and determined character, Mattie stops at nothing to bring the criminal to justice. Determined to find him, she teams up with a grumpy and experienced marshal, Rooster Cogburn, known for his toughness and willingness to do whatever it takes to catch wrongdoers.
Despite Rooster's reluctance to have a girl around, Mattie proves to be more clever and courageous than many give her credit for. Together, they form an unexpected duo and embark on a dangerous pursuit across the hostile terrains of the West in search of Chaney. As their journey progresses, they encounter various dangers, including bandits and wild Cherokee Indians. Mattie's determination and Rooster's experience are put to the test as they confront not only their enemies but also their own internal demons.
The story, infused with themes of justice, revenge, and courage, reveals the tenacity of a young girl willing to fight for what she believes is right, even when the odds are against her. With a gritty atmosphere and endearing characters, the plot explores sacrifice and struggle in a world where law and order are often disrupted.