To Breathe Free Air is the sequel to Shows No Mercy and is the further adventures of Walker Haugen who was given a fortune in gold nuggets by the Crow Indians even after showing the chief what the gold could purchase. He finds himself only able to help the Crow people on a small scale. Because of his belief that one person cannot 'own' another he sets off on a quest to rid the world of slavery. This includes Blacks in the south and Native Americans in the north. This is the story of that uphill battle.