Film
The chief engineer proposes to make changes to the design of the polar hydroelectric power station by abandoning the construction of the tunnel due to a collapse.
Vladimir Samoylov
Elena Gabets
Boris Nevzorov
Viktor Gogolev
Fyodor Shmakov
Vladimir Steklov
Aleksandr Sokolov
Elena Molchenko
Alexander Vdovin
Natalya Gushchina
Iya Arepina
Mikhail Yezepov
Mikhail Bychkov
Vladimir Episkoposyan
Semyon Chungak
Nikolay Mikheev
Vsevolod Khabarov
Svetlana Khiltukhina
Aleksandr Voropaev
Vyacheslav Gorbachev
