When Hitler's Nazis marched into Poland, it brought an abrupt, cruel end to Jack Eisner's childhood, shattered his loving family, and turned his peaceful Jewish community into a nightmarish world of atrocity and murder. Instead of entering the Warsaw Music Conservatory, to which he'd won a scholarship, Jack found himself climbing cemetery walls, leaping over rooftops, and tunneling through sewers with a gang of fellow teenagers to smuggle food, hope, and survival into his besieged home.