 With the wagon train stopped for repairs, Flint McCullough rides off into Sioux territory to look for a white girl who disappeared 11 years ago in the same area. When he s shot in the thigh by a Sioux arrow, he s rescued and tended to by a white woman who never speaks and who lives with four wolves. This woman -- who may well be the missing Ruth Marshall -- then saves Flint s life after he s been taken as a prisoner to the village of Indian chief, Red Cloud