Three spacecraft set out for Venus, two arrive, one commanded by Caotain Masha (Ignatova) which remains in orbit and one that lands on the planet. The rest is a fast-paced adventure story, told with considerable humor, involving volcanic eruptions, giant animals and hostile plants. The sets are stunningly designed with outlandish color schemes rendering the uncanny alienness of the Venusian landscapes as well as the spectacular aspects of space travel itself.