A young Indian girl falls in love with a local white cowboy. The racist element in town doesn't approve of that, so they kidnap the girl and gang-rape her. The girl's brother hears about it, and he and other members of the tribe kidnap a white girl from town and gang-rape her. Things go downhill from there.
Sue, who receives a letter from her 18-year-old brother Jamie complaining he is still a virgin. She gets a female friend (with several lesbian scenes along the way) to help out deflowering him, not for incest purposes but more of a mentoring exercise.