Randall Foster was a young school teacher who got dragged into a deadly clash of clans. When the dust settled, the teacher was hand-picked by a covert government agency called The Service. Proving himself in a secret training programme, Randall Foster soon has a new career, a code name "Rattler," and a stubborn horse who does everything except obey. In a mild-mannered disguise, Rattler comes to Clearview, Kansas, in search of a depraved killer using the name Featherston - and walks straight into the ruthless killer's crosshairs. People are getting slaughtered in cold blood, two other Service agents are already in deep, and Rattler's cover is wearing thin. Now, amidst corruption, murder and betrayal, Rattler must turn from secret agent to bold-faced fighter - against an enemy with more cunning than anyone can possibly know...