The movie takes place at the construction of a tunnel in the Arctic Circle. A young engineer Andrei Arefyev is appointed head of the site. Between him and Nikolai Krumov, head of the neighboring site, there is a serious conflict. And it's not only about different professional approaches to construction methods in harsh conditions: Arefyev's favorite girl Svetlana, without any agony, preferred Krumov to him.
| Actor | Role |
|---|---|
 Igor VasilevNot listed | Not listed |
 Anatoliy SolovyovNot listed | Not listed |
 Gennadiy YukhtinNot listed | Not listed |
 Evgeni BurenkovNot listed | Not listed |
 Nikolay DupakNot listed | Not listed |
 Kirill StolyarovNot listed | Not listed |
 Boris YurchenkoNot listed | Not listed |
 Valeriy ZolotukhinNot listed | Not listed |
 Yuri Katin-YartsevNot listed | Not listed |
 Grigori AbrikosovNot listed | Not listed |
 Valentina BerezutskayaNot listed | Not listed |
 Eduard BredunNot listed | Not listed |
 Yuri GusevNot listed | Not listed |
| IIgor IvanovNot listed | Not listed |