BRITT MacMASTERS, a U.S. Marshal who rarely brings them back alive, returns home from the trail to discover his 12-year-old son, CHAD, has been kidnapped by outlaws - JED BLAKE and his gang. Enlisting the help of Indian guide, CHASKA, along with CLAY TUCKER, a prejudiced deputy who doesn't trust the guide, Britt sets out into dangerous Sioux territory. As Jed lures the Marshal into his deadly ambush, he finds the captive boy a formidable and slippery opponent, with several escape attempts that r