The title refers to the code of action for the "823" arms uprising against the Nazis in 1944. At that time, Romania was a puppet government of the Nazis, and the German high Command developed a secret operation plan "Romania Margarita II", in an attempt to fully occupy Romania. The Romanian Communist Party, through the party underground, sent Captain Udrea, a patriotic officer of the Romanian armed forces, to try to obtain this secret plan. Oudreya in underground party member toma and other people's cooperation, eliminated all kinds of difficulties and obstacles, finally defeated his old classmate when studying abroad in Germany Werner, obtained the plan. Under the leadership of the Communist Party and based on this information, the armed forces and the Patriotic Guard, with the working class as the main body, successfully launched the armed uprising of August 23, 1944, which was of great historical significance, overthrew the Antonescu puppet group and began the struggle for the liberation of the motherland.