Nadya must recruit her fallen comrades and form the First Squad in order to oppose the evil Baron Von Wolff, who is raised from the dead by the Nazis, and his occult army of 12th-century Crusaders. The First Squad and Crusaders engage in a spiritual battle known as the "Moment of Truth". Whoever wins the supernatural battles within the spiritual realm dictates the outcome of physical battles waged between the Red Army and the Germans.

The series is drawn by a Japanese author but has never been published in Japan. The first edition was in Russian.