Years after World War II, agents in the Israeli intelligence organization Mossad discover that Nazi officer Adolph Eichmann (Alfred Burke), a key architect of the Holocaust who supervised various extermination camps, is still alive and living in Argentina under an assumed name. Determined to abduct Eichmann and bring him to trial in Israel, a group of Mossad agents, including Isser Harel (Martin Balsam), travel to Argentina to carry out their mission.