Distraught from the death of their grandparents, the broken Rowe family stumbles upon the Samson Ranch, neighboring cowboys with hidden pasts. Siblings Rachel and Matthew Rowe explore their new land, finding friendship with a reclusive Wichita Indian medicine man. The discovery of wild bison attracts menacing attention and intensifies their curiosity of the peculiar Indian. Rancher Buck Samson sees his early life return with the arrival of a lone gunman. Chaos ensues when the children disappear with the bison. Can Buck protect his family from the secret of his past? Will the bizarre disappearance of the children be revealed?