In September of 1972 an unprecedented terrorist attack unfolded live before 900 million television viewers across the globe and ushered in a brave new world of unpredictable violence. It was the second week of the Summer Olympics, and in Munich, West Germany, the games that had been dubbed "The Olympics of Peace and Joy" were off to a rousing start. Without warning, an extremist Palestinian group known as Black September invaded the Olympic Village, killing two members of the Israeli Olympic team and capturing nine hostages. The tense stand-off and tragic massacre that ensued played out with stunning immediacy on television before an international populace and ended 21 hours later when anchorman Jim McKay spoke the haunting words, "They're all gone." Mourning the massacre and infuriated by its savagery, a young Israeli patriot and intelligence officer, Avner is approached by a Mossad officer named Ephraim who presents him with an unprecedented mission in Israeli history. He asks Avner to leave behind his pregnant wife, relinquish his identity and go completely underground on a mission to hunt down and kill the 11 men accused of masterminding the murders. Despite his inexperience, Avner becomes the leader of a team of four very diverse yet highly skilled recruits: the brash, tough, South African-born getaway driver, Steve; the German Jew Hans, who has a flair for forging documents; the Belgian toymaker-turned-explosives-expert, Robert; and the quiet, methodical Carl, whose job is to "clean up" after the others. Avner and his team circle the globe under a cloak of extreme secrecy, tracking down each man on a closely guarded list of targets and carrying out intricately plotted assassinations. Working outside the rubric of international law, adrift without home or family, their only connection to humanity becomes one another. But even that starts to fray as the four men begin to argue among themselves about the unsettling questions that just won't go away: "Who exactly are we killing? Can it be justified? Will it stop the terror?" The mission begins to tear at the souls of Avner and his team, and it becomes increasingly clear that the longer they remain on the hunt, the more they are in danger of becoming the hunted.