1866年的怀俄明州,一名边境侦察员试图阻止苏族和美国之间的战争。美国军队想撕毁之前与苏族人签订的和平条约,意图强制在苏族人的保留地上修建了一条公路和一座堡垒In 1866 Wyoming, a frontier scout tries to prevent a war between the Sioux and the U.S. after the Army builds a road and a fort on territory previously ceded to the Sioux by treaty.