| The series is set in the 1920s. It tells about the first tasks of Isaev. First, he goes to Reval to stop the smuggling of valuables stolen from Gokhran. Upon his return, he is sent to Vladivostok to collect information about the actions of the whites. Then he has to go abroad to monitor counterrevolutionary emigration. |
| Name | Character | Episodes |
|---|---|---|
| Kseniya Rappoport | Лидия Боссэ, певица | 16 |
| Yuriy Lakhin | Павел Прохоров, председатель Ревтрибунала | 16 |
| Vladas Bagdonas | Маршан, ювелир в Ревеле | 16 |
| Aleksandr Sirin | Сергей Шорохов, первый секр. посольства России в Эстонии | 16 |
| Lembit Ulfsak | Артур Неуманн, нач. политич. полиции в Эстонии | 16 |