Set in Wyoming in 1868, Jeb Winslow and his hunting patrol are ambushed by the Sioux, robbed of their goods, and left for dead. With Winslow as the last survivor during the attack, he is picked up by the US Army and unwittingly becomes a scout for them while under the refuge of Camp Nelson. During his stay, he becomes entangled in a quest for payback for his slain friends as well as trying to survive in a tumultuous environment.