In modern-day Taganrog they find the record cards of war-era policemen. The FSB instructs Major Vitaly Polyakov to find the criminals-collaborators. During the Great Patriotic War the youth of Taganrog decides to create a Komsomol underground.

In occupied Taganrog underground fighters are active sabotage work. In the modern city, saboteurs steal Polyakov's laptop with digitized cards of policemen.