Storyline:As Cowboy Lefty Brown (Bill Pullman) witnesses the murder of his longtime partner - the newly elected Senator Edward Johnson (Peter Fonda) - he goes in search of the murderers and longs for revenge. He follows the outlaws through the vast expanse of Montana and recruits on the way the young gunman Jeremiah (Diego Josef). Both also get help from an always-alcoholized U.S. Marshall (Tommy Flanagan). After Jeremiah is wounded in a shootout with the killer gang, Lefty returns home with the names of the criminals in the luggage - only to find out that he himself is being charged with the murder of Edward Johnson. Lefty must prove his innocence by pillorying the real killer.