Winter of 1941 in the besieged city of Leningrad, Soviet counterintelligence learns that the Germans are preparing a diversion on the “Road of Life” – the only way in which food and other goods are delivered to the city. Most likely, the saboteur is one of the drivers of the “lorry” working on the frozen Lake Ladoga. Find and stop the enemy should the captain of the NKVD Sergienko…