About the book: a year / Nine years after the events of the previous book. The spaceship "Alexei Leonov" with a Soviet-American crew on board is sent to Jupiter to unravel the mystery of the "Discovery" left in orbit of Jupiter. To do this, the commander and members of the star crew will have to reactivate the disabled computer brain HAL-9000, which was one of the reasons for the failure of the first expedition.