Fact1: Mattie Ross 's father was murdered by Tom Chaney, Fact2: Mattie While collecting father 's body in asks local sheriff Fort Smith, Fact3: Texas LaBoeuf arrives in town pursuing Chaney for murder of Texas State Senator, Fact4: Chaney to be hanged in Arkansas for father 's murder, Fact5: Cogburn allows Mattie to accompany eventually them
Output: Mattie Rosss father was murdered by Tom Chaney when she was 14 years old. While collecting her fathers body in Fort Smith, Arkansas, Mattie asks the local sheriff about the search for Chaney. He tells her that Chaney has fled with Lucky Ned Pepper and his gang into Indian Territory, where the sheriff has no authority, so she inquires about hiring a Deputy U.S. Marshal. The sheriff gives three recommendations, and Mattie chooses Rooster Cogburn. Cogburn initially rebuffs her offer, not believing she has the money to hire him, but she raises the money by aggressively horsetrading with Colonel Stonehill. Texas Ranger LaBoeuf arrives in town, pursuing Chaney for the murder of a Texas State Senator. LaBoeuf proposes joining Cogburn, but Mattie refuses his offer. She wishes Chaney to be hanged in Arkansas for her fathers murder, not in Texas for killing the senator. Mattie also insists on traveling with Cogburn but he leaves without her, having gone with LaBoeuf to apprehend Chaney and split the reward. After being refused passage on the ferry that conveyed Cogburn and LaBoeuf, Mattie crosses the river on horseback. LaBoeuf expresses his displeasure by birching Mattie with a stick, but Cogburn eventually allows Mattie to accompany them. After a dispute over their respective service with the Confederate Army, Cogburn ends their arrangement and LaBoeuf leaves to pursue Chaney on his own. Cogburn and Mattie meet a trail doctor who directs them to an empty dugout for shelter. They find two outlaws, Quincy and Moon, and interrogate them. Quincy insists they have no information about the Pepper gang, but eventually Moon divulges what he knows; Quincy fatally stabs Moon, and Cogburn shoots Quincy dead. Before dying, Moon says Pepper and his gang will be returning for fresh horses that night. LaBoeuf arrives at the dugout and is confronted by the Pepper gang. Cogburn, hiding on the hillside with Mattie, shoots two gang members and accidentally hits LaBoeuf, but Pepper escapes. However, Cogburn and LaBoeuf argue the next day, and the latter departs again. While retrieving water from a stream, Mattie encounters Chaney. She shoots him, but he survives and drags her back to Pepper, who forces Cogburn to leave by threatening to kill her. Pepper leaves Mattie alone with Chaney, ordering him not to harm her or he will not get paid after his remount arrives. Chaney tries to knife Mattie, but LaBoeuf appears and knocks Chaney out. They watch from a distance as Cogburn fights the remaining members of Peppers gang, killing two and wounding Ned before his horse is shot and falls, trapping his leg, whereupon LaBoeuf snipes Pepper. Chaney regains consciousness and knocks out LaBoeuf, but Mattie seizes LaBoeufs rifle and shoots Chaney in the chest. The recoil knocks her into a deep pit, where she is bitten by a rattlesnake. Cogburn cuts into her hand to suck out as much of the venom as he can, then rides day and night to reach a doctor, carrying her on foot after her horse collapses from exhaustion. Matties left forearm is amputated due to gangrene from the snakebite. Cogburn stays until she is out of danger, but leaves before she regains consciousness. She never sees Cogburn or LaBoeuf again, despite writing a letter inviting Cogburn to collect the money she owed him. Twentyfive years later, she receives a note from Cogburn inviting her to a travelling Wild West show where he now performs. She arrives, only to learn that he died three days earlier. She has his body moved to her family cemetery. Standing over Cogburns grave, she reflects on her decision to move his remains, and about never having married, as well as the possibility of seeing LaBoeuf again.