In 2020, after the colonization of the moon, the spaceships Vega, Sirius and Capella are launched from Lunar Station 7. They are to explore Venus under the command of Professor Hartman, but an asteroid collides and explodes Capella. The leader ship Vega stays orbiting and sends the astronauts Kern and Sherman with the robot John to the surface of Venus, but they have problems with communication with Dr. Marsha Evans in Vega.

When Prince Danilo falls in love with American dancer Sally O’Hara, his uncle, King Nikita I of Monteblanco, forbids him to marry her because Sally is a commoner.

In 1900, a clan attempts to strike a deal with a Chicago industrialist to get him to build cotton mills in their Deep South town.