In 1945, Polish intelligence agent Hans Kloss, codenamed J-23, goes to Konigsberg to search for the treasure stolen by the Nazis. It's there that he meets his old friend and rival, SS Officer Hermann Brunner.
Based on a true story. After Poland is overrun by Axis forces in 1939, an officer and his remaining men decide to continue fighting the invaders alone, thereby becoming the first guerrillas of World War II.