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.

Ing. Bernard announces that his wife has not returned from visiting relatives in Berlin. Lieutenant Tereza Machátová, who together with Captain Landa is investigating the matter, puts the facts into connection with the discovery of the drowned woman's body.

During his work assignment in Tamani Kingdom, Czech worker Lojza saves a local man from dying in the desert. Two years later, it turns out the saved man was also the Taman king; and he has decided to name Lojza, a communist, his royal heir.

African student Omar would like to return home to Angola, but he is enrolled in a three-year postgraduate research fellowship at a clinic in Prague. One day while seeing off a friend at the airport, he and a girl named Mariama are brought together by chance as he offers to accompany her in an unfamiliar city toward the International Student Club, where she plays bass in a jazz orchestra.