The telefilm follows the fun adventures of two average students, Vovka and Valerka, who, while searching for an underground river, realize that their efforts won't succeed without knowledge.
| Release Date | November 5, 1980 | |
|---|---|---|
| Status | Released | |
| Original Title | Тихие троечники | |
| Runtime | 2h 10min | |
| Budget | — | |
| Revenue | — | |
| Language | — | |
| Original Language | Russian | |
| Production Countries | Soviet Union | |
| Production Companies | Belarusfilm | |