Winter of 1942. The army group under the command of General Khudoyarov was ambushed. NKVD major Urusov goes there to track down the spy and saboteur.
2 -Episode 2 46 min
In the hospital, Urusov meets Natalia - the woman he loved and lost twenty years ago. He does not admit that he recognized her because he is conducting an undercover investigation.
3 -Episode 3 47 min
Colonel Velyaminov (Khudoyarov's right-hand man) begins to suspect that Yampolsky is not who he claims to be. Perhaps he is a real saboteur.
4 -Episode 4 51 min
Scouts are sent to another partisan detachment where they see that the camp is empty, all are killed. In the distance, there is a knock of axes: saboteurs pretending to be partisans are chopping wood to put log on the road for German tanks which will soon arrive by train on an abandoned narrow gauge railway.
The Soviet Union 1942. The Germans are about to mount an attack on the Russians, but at the same time there is a saboteur among the Russian Camp and it's up to a KGB Major and his team to stop him/her before it's too late.