In 2157, human civilization has made an all-round leap forward. War, hunger and poverty have long ceased to exist. Nature has revived again, human potential has been greatly developed, and has begun to extend to outer galaxies. The 22-year-old youth Maxim Carmel (Vasiliy Stepanov) is flying a spacecraft alone for a space travel, but suddenly hit by a meteorite, and then fell on a remote colonial planet Sarash. Because the spacecraft crashed completely after the forced landing, Maxim had to embark on a journey alone to seek help. Sarash is desolate and dilapidated, uninhabited, and its civilization seems to be several centuries behind the earth. Dictatorship is the dominant force on this planet. For Maxim, who has been pampered since childhood, everything here is so novel, and he has unknowingly played the role of a revolutionary... This film is adapted from the science fiction novel by Arkadi Strugatsky and Boris Strugatsky.