It is 1913 and ex-soldier turned professional big game hunter; Leon Courtney; is in British East Africa guiding rich and powerful men from America and Europe on safaris in the Masai tribe territories. One of his clients; German industrialist Count Otto Von Meerbach; has a company which builds aircraft and vehicles for the Kaiser's burgeoning army. But Leon had not bargained for falling passionately in love with Eva; the Count's beautiful and enigmatic mistress. Just prior to the outbreak of World War I; Leon is recruited by his uncle; Penrod Ballantyne; Commander of the British Forces in East Africa ; to gather information from Von Meerbach. He stumbles on a plot against the British involving the disenchanted survivors of the Boer War; but it is only when Eva and Von Meerbach return to Africa that Leon finds out who and what is really behind the conspiracy.