Based on the true story of the Jewish Fighting Organization, a courageous band of youthful Polish guerrillas and freedom fighters who refused to knuckle under to the Nazis during World War II. Led by schoolteacher Mordechai Anielewicz, the organization comes into being as the Warsaw Jewish ghetto is being systemically decimated and shipped off to the Treblinka death camp by the German occupational forces. From April 19 to May 16, 1943, Anielewicz' followers staged a valiant uprising, which - though ultimately unsuccessful in stopping the Nazi "final solution" juggernaut - inflicted an enormous amount of damage upon the enemy and enabled hundreds of Polish Jews to escape the gas ovens and crematoriums. Much of the story is based upon the eyewitness testimony of surviving freedom fighter Simha "Kazik" Rotem.