Upon arrival to Venus, cosmonauts find furious volcanoes and sundry prehistoric beasts in Klushantev's film, based on a novel by the Soviet sci-fi writer Aleksandr Kazantsev. Footage has been recycled...
Four astronauts have to stay 1000 days in a space station around Earth in order to prove that a trip to Europa, one of Jupiter's moon, is possible. The experience goes well until something happens...