Living and working in the isolated and fictitious village Svartlien, they face the horrors of solitude and dangers of the wild nature.
Their father Stor-Erik, missing for decades, is always present as a symbol of perfection and the ultimate idol for the brothers.
Occasionally, visitors arrive at Svartlien, with the common result that Sven-Erik has to save them from wild animals, avalanches or other dangers.
Starting with a voice-over describing the basic plot of the series, the camera pans from a crude model of the mountaintop near the brothers' home to their little house.
In the end of every episode the brothers perform a dance in Bengt-Hans Bodega, often to the tune of a classic disco song.