About the youth team of builders laying in the taiga railway Abakan-Tayshet. In the taiga, on the site of the future route, the youth team of Nikolai Bondarenko works. The people in the brigade are very different: the educated muscovite Vitaly, the resourceful Boris, the scribe and the romantic "Bukvar", but everyone lives together. They dream of a future route that will open the way to the Sayan Mountains.
| Actor | Role |
|---|---|
 Stanislav Borodokin"Bukvar" | "Bukvar" |
 Vladimir GusevNikolai | Nikolai |
| VViktor ZadubrovskyKeshka | Keshka |
 Irina VavilovaOlga | Olga |
 Konstantin KhudyakovVitaliy | Vitaliy |
| AAntonina ZhmakovaZoyka | Zoyka |
 Viktor FilippovBoris | Boris |
 Vladimir SalnikovSpirkin | Spirkin |
 Valentina TelichkinaDasha | Dasha |
 Vladimir GulyaevMotovilov | Motovilov |