The series is about the operation code-named "Trest", which under the leadership of F.E.Dzerzhinsky was carried out by the VChK to identify and eliminate the counter-revolutionary and monarchist underground on the territory of the USSR, associated with foreign white-emigrant organizations.

A story about CHeKa operation against a foreign spies during the early years of Soviet Russia.

In May 1808, the fortress, renamed Sveaborg, surrendered to Russian troops and, together with the fleet and fortifications, went to the Russian Empire.

A story about CHeKa operation against a foreign spies during the early years of Soviet Russia.