An old British scientist and his daughters are trapped in their Amazon jungle fortress by Von Braunner, who's leading the local Indians against them. All looks hopeless until Virgin, Doublett and Mrs. Cortez arrive.
German agents seek to steal a chemical formula that causes temporary paralysis from a Swiss scientist, so that it can be sold to a sinister Chinese warlord. While Virgin and Mrs. Cortez's attempt to stop them, they are captured.
Von Braunner has arranged for an assassin to kill a Serbian noble and make it appear a better known killer-for-hire,Le Mec, is responsible. Virgin and Mrs. Cortez in turn enlist his help to thwart the plot.
In a strange "Shangra-La" type kingdom, their blonde goddess must marry a white warrior, as per an ancient legend,which Von Braunner intends to exploit, but Virgin comes on the scene and complicates things.
Anarchist masterminds are brought to England by VonBraunner as part of a two-pointed plot to assassinate King Edward and the visiting Kaiser Wilhelm, and steal the crown jewels from the tower of London.
Von Braunner kidnaps a scientist and forces him to look for oil in Texas, on the land of a trigger happy ranch boss named Big Jack, who has a nearby cowboy town under his heel. Virgin and Doublett are diverted there looking for the Colonel.