The mining town of Donetsk with specifically difficult mining and geological conditions. To the new chief engineer Marat Zhukov, the mine directorate sets the task to close the dangerous lava, where the Dotsenko team works - one of the best mines has ceased to fulfill the plan. Having made the calculations, Marat discovered the possibility of reaching the normal layer and he was able to convince the authorities that it was not necessary to disband a friendly team.
| Actor | Role |
|---|---|
| VViktor IzmaylovNot listed | Not listed |
 Nikolai MerzlikinNot listed | Not listed |
 Vladimir KashpurNot listed | Not listed |
 Yuriy KuzmenkovNot listed | Not listed |
 Vsevolod GavrilovNot listed | Not listed |
 Volodymyr ShakaloNot listed | Not listed |
 Vyacheslav ZharikovNot listed | Not listed |
 Irina SanpiterNot listed | Not listed |
 Sergey LyakhnitckyNot listed | Not listed |
 Boris IvanovNot listed | Not listed |
 Gerbert DmitrievNot listed | Not listed |
 Zinaida DekhtyaryovaNot listed | Not listed |
 Vladimir VolkovNot listed | Not listed |
 Asya BobinaNot listed | Not listed |
 Neonila HnepovskaNot listed | Not listed |
 Olga AndrovskayaNot listed | Not listed |
 Ivan MatveyevNot listed | Not listed |