A deadly threat from the past touches Yakov Katzenelenbogen, a Stony Man operative. As part of the elite commando unit, Mack Bolan and Katz had fought many battles together, but now they are forced to go solo on a personal mission.

A specter of vengeance has returned to pursue Katz, a vendetta with deep roots going back beyond the Nazi death camps. A legacy of hatred erupts into a desperate and violent global chase - for a day of reckoning that may leave no contender standing.