Outlaws disguised as Indians commit crimes against settlers but Winnetou and Old Surehand are determined to unmask the bandits and keep the peace.
Fred Engel's father is murdered by Colonel Brinkley in order to acquire a treasure map, however the Colonel only acquires half of it, the other half as held by Mrs. Butler. Discovering the scene of the crime, Old Shatterhand and Winnetou help Fred bring his father's murderer to justice and locate the treasure of Silver Lake.
C.R. MacNamara is a managing director for Coca Cola in West Berlin during the Cold War, just before the Wall is put up. When Scarlett, the rebellious daughter of his boss, comes to West Berlin, MacNamara has to look after her, but this turns out to be a difficult task when she reveals to be married to a communist.