Sternensommer (English: Summer Of Stars) is a German children's and youth television series that aired in 1981 on ZDF.

Jochen Feucht moved with his family in a foreign city, because his father (Rainer Hunold) is there to take up a position as manager of the local chemical plant.

Mr. Glasuschek recently gets a visit from a scary-looking lady, who calls herself Dr. Markward (Nadja Tiller) and has a particular interest in the business and a doll that is actually not for sale.

As it turns out, are Mrs. Markward and her mysterious companion Tobias emissaries of the planet Xenon, to pursue and make the Lodeweik.

Even Mr. Feucht, father of Jochen, is increasingly recognizing the threat posed particularly by the power plant, and is working diligently to find a solution.