Germany 1945. Max, a holocaust survivor has lost all his family in the camps. Full of rage and with nothing left to live for other than revenge, he helps the Jewish Brigade, soldiers under British command, to off the record find and execute Nazis accused of leading positions in the Nazi system. When the brigade is called off, Max follows Anna and a group of former partisans to Nuremberg, where they soon realize that they will not find redemption in the upcoming Nuremberg trials.

Led by charismatic leader Abba Kovner, they formulate the biggest revenge operation in history - "Plan A“. They infiltrate German water companies as undercover engineers with only one goal: to poison the drinking water in Nuremberg, Munich, Cologne, Weimar and Hamburg and "to kill six million Germans, one for every Jew slaughtered by the Germans“.