When a stormy night brings U.S. Marshal Charley Bourbon, littered with deadly wounds and a tale of ruthless outlaws, to Lone McGantry's doorstep, an unspoken pact of vengeance is forged. With justice on their minds, the duo sets out on a dangerous manhunt for the gang who left Charley for dead.

As their pursuit leads them through the desolate Sandhills and treacherous northern terrain, ambushes and bounty hunters out for blood threaten their mission. Aiming to protect innocent lives caught in the crossfire, Lone and Charley must face down their adversaries in one final, explosive showdown.

With every bullet fired and every step taken, Lone faces his fiercest test yet-one that will determine if his story ends in victory or demise.