The movie is set in Belarus, where a team of counter-intelligence officers is given only three days to find a German radio operator posing as a Soviet soldier, behind soviet lines, on the eve of a major offensive.

The story takes place in 1944, when the Soviet Army has liberated all of the Russian territory and reached the Polish border. The regular army is busy with its movements and relocations, and nearby, the woods of Belarus / Lithuania / Poland, the Soviet intelligence service called Smersh - Death To Spies, is tracking down the well-organized fascist group consisting of Russians - the traitors who had chosen to serve the Nazi Germany.