The events of the film take place in the early sixties of the XX century, when the exploration of Antarctica was just beginning and the ice continent was full of secrets and mysteries. A group of polar explorers, before being sent to their homeland, is given the task of re-preserving the Vostok intracontinental station.
| Actor | Role |
|---|---|
 Konstantin GrigorevNot listed | Not listed |
 Anatoliy RomashinNot listed | Not listed |
 Alexander VdovinNot listed | Not listed |
 Aleksandr BelyavskiyNot listed | Not listed |
 Boris KhmelnitskyNot listed | Not listed |
 Algimantas MasiulisNot listed | Not listed |
 Boris KhimichevNot listed | Not listed |
 Valeri MalyshevNot listed | Not listed |
 Yuriy NazarovNot listed | Not listed |