Tertium Non Datur plot
The year 1944. The west of Ukraine is still occupied by the German Wehrmacht, who have started a large secret construction on a large scale. An order has arrived from the Soviet secret service to find out what the real purpose of this project is. After all, the high command of the Soviets fears that the work is intended for a decisive counter-attack. That is why a reconnaissance unit is being deployed with a view to obtaining and passing on information about this large-scale project. In addition, a Russian spy has also penetrated the rear of the covert operation to infiltrate under the Nazis.