1870 and Indian Territory is a hellhole of lawlessness. Federal lawmen are being gunned down in cold blood and outlaws are trading arms to renegade Indians. The lawmakers in Washington fear that order has been lost and insurrection may spread to the peaceful tribes. In desperation, a bold and secret plan is devised by two senior US marshals to recruit a new and unknown deputy - one who can operate independently to hunt down and kill three notorious outlaws in reprisal. But has the right man been selected for this dirty, difficult and dangerous assignment? Walter Garfield's background is more than a little shady, and he seems to have his own agenda. Why does he keep asking after a fourth man by the name of Jason Taylor who is travelling with a Mexican woman? And why do people call him Reaper?