
The summer of 1971 was hot and dry. This circumstance ensured that the plan would be exceeded and promised large earnings for Ivan Kopyriv's geological exploration expedition, which was located in the area of the Tunguska village of Erbogachen. Upon encountering a layer of permafrost, master Yelfimov, contrary to fire safety regulations, ordered the permafrost to be thawed with bonfires. However, the dry and gusty wind did its job: the resulting fire spread with catastrophic speed to the continuous forest areas, and the situation spiraled out of control.
Cast

Vladimir Antonik
Pavel Kopyryev
Galina Munzuk
Lena

Viktor Tarasov
Ruchyev
Nikolai Olzej-Ool
Avachan

Nikolay Gravshin
Krasnostanov

Vadim Andreyev
Yelfimov

Yuri Zabarovsky
Khayenko
Arkadi Katovshchikov
Unknown
Vasili Nagovitsyn
Unknown
Anatoli Gorbenko
Glokhlov
Valentin Verkhoturov
Unknown

Vasiliy Popov
Glyrin

Zinaida Kulakova
Unknown

Vladimir Shikhov
Unknown

Viktor Smirnov
Unknown

Vladimir Smirnov
Unknown
O. Usanova
Unknown

Inna Vykhodtseva
Unknown

Vitaliy Yakovlev
Unknown
Crew

Boris Buneev
Director
Yuri Sbitnev
Writer, Novel
Valentina Kibalnikova
Script Editor
Svetlana Frolenko
Editor
Aleksey Chardynin
Director of Photography
Viktor Yerofeyev
Color Timer
Feliks Król
Assistant Director
Leonid Likanov
Assistant Director
Mikhail Pyaderkin
Assistant Director

Olga Bednova
Production Design
Vladislav Menshikov
Camera Operator
Vladimir Sazonov
Assistant Camera
Ye. Medvedeva
Costume Design
Yu. Lebedeva
Makeup Artist
Genrikh David
Sound

Yevgeni Gevorgyan
Music
I. Nazarov
Set Decoration
N. Nikitina
Stunt Coordinator
A. Boldirev
Gaffer
Viktor Zolotaryov
Production Manager
Elshad Bagirov
Conductor