The year is 1943, and the three Allied leaders--FDR, Churchill, and Stalin--are meeting for the first time at a top-secret conference in Tehran. But the Nazis have learned about the meeting, and Hitler sees it as his last chance to turn the tide. Although the war is undoubtedly lost, the Germans believe that perhaps a new set of Allied leaders might be willing to make a more reasonable peace. And so a plan is devised--code-named Operation Long Jump--to assassinate all three men. A team of Nazi commandos is assembled, trained, armed with special weapons, and parachuted into Iran with six days to complete the assignment. With no margin for error and little time to spare, the head of FDR's Secret Service detail must overcome his suspicions and instincts to work with a Soviet agent to save the three most powerful men in the world.