The year is 2163. Starship Ikaria XB 1 embarks on a mission deep into space in search of alien life. During their perilous journey the crew confront the effects of a malignant dark star, the destructive legacy of the 20th century and, ultimately, the limits of their own sanity.
An upholsterer who is preparing a rocket for takeoff accidentally jettisons himself into space and returns to Earth 500 years later with an alien companion who wishes to learn more about the human race.
We learn that the greatest virtue of socialist competition is collective cooperation. This is what the young, physically fit assembler refuses to understand. He suspects his co-workers of overlooking his merits out of jealousy. And it takes him a long time to understand that the individual alone can do nothing, that only the collective has the necessary strength - and therefore the truth.
