January 1945. Fourteen-year-old Moshe Kessler gets off the train at the Buchenwald concentration camp along with several hundred other children. Having survived the horrors of Auschwitz, losing contact with his entire family and undergoing a “death march” in the freezing winter, Moshe miraculously remains alive. In Buchenwald, Moshe’s new home becomes Children’s Block 66. As the Allies approach, the Germans decide to destroy the camp and send the remaining prisoners back to “ death march." However, the guards do not know that there is an underground movement operating in Buchenwald, the main goal of which is to protect the Buchenwald children from death. The resistance is led by the famous block leader Antonin Kalina, who personally saved more than 900 children from all over Europe in the camp. Carefully reconstructed and emotionally written, the story of Moshe Kessler tells of his life in Block 66, which became one of the most significant pages in the history of the Holocaust.