A baby girl is found by travelling Cheyenne. A brave and his wife bring Blue Sky up, as if she were their own, and she is happy to be one of the people, even after being told she was born of the white man.
While only in her teens she performs a coup which gives her all she had hoped for, full acceptance into the tribe and a forthcoming wedding to the brave she loves. But a jealous rival has other ideas. She arranges Blue Sky's abduction telling her mother and father that she has run away.
Blue Sky is taken by an unscrupulous trader to a white man's town. She is abused and enslaved but eventually finds help in the sheriff and school teacher.
Despite the risks, she comes to the aid of the Indian residents of a nearby reservation and, in so doing, encounters a brave who plots their escape from the town and reservation.
Then begins a long, dangerous and fateful journey home.