The Oil Prince has sold a phony oil well to a banker near Lake Chinla (which in the film sounds like "Schindler See"; an aural misunderstanding known in the German language as "Chinla's Lisp"). There's only one slight problem: the land, on which the oil well sits, doesn't belong to the Oil Prince. To top it off, some German settlers are intent on setting up camp at Lake Chinla and starting a new life there. Old Surehand and Winnetou ride to the chiefs of the local Navajo and Utah Indians to vouch for the settlers' peaceful nature. When word gets back to the Oil Prince that the Indians are going to cede the land to the settlers, he has his men kill the settlers' scout to prevent them reaching the lake before he can make a deal with the natives. However, that doesn't delay the Germans' search for Lebensraum in northern Arizona by very much. Then the Oil Prince hears the Indians are going to give the land to the settlers for free, thanks to Winnetou's telling the Utahs, that the settlers have no money to buy land. This, however, isn't exactly true: one of the Germans is carrying an ill-gotten bag of gold and the Oil Prince knows this. When he tells the chief of the Utahs, that the settlers are lying about being poor and sets up the chief's son to be murdered and make it look like the settlers did it, both the Utahs and Navajos decide the lake would be better off with a casino housing an all-you-can-eat buffet rather than a noisy Hofbräuhaus (and they're determined to make their wishes known at dawn the next day, with lots of armed warriors, some skewers and a big barbecue, at which German cooking will be the star attraction ... or was that "cooking Germans"?).

Der Ölprinz hat einem Bankier eine Ölquelle in der Nähe des Chinla-Sees verkauft. Doch Siedler, die sich dort niederlassen wollen, passen ihm gar nicht in den Kram, daher lässt er einen ihrer Scouts ermorden. Durch die Hilfe von Winnetou, Old Surehand und Old Wabble finden die Siedler dennoch Land – auf dem Gebiet der Navajos. Doch auch das gefällt dem Ölprinzen nicht, daher lässt er den Sohn des Häuptlings ermorden und lenkt den Verdacht auf die Siedler.

 DVD-R is in German with switchable English subtitles. Approx. 90 mins. See film sample for audio and video quality!