1913: ex-soldier turned professional big-game hunter Leon Courtenay is in British East Africa, guiding rich and powerful men on safari in the Masai tribal territories.  One client is German industrialist Count Otto von Meerbach, who has a company which builds aircraft and vehicles for the Kaiser’s growing army. But Leon didn’t count on falling in love with Eva, the Count’s beautiful, enigmatic mistress. Just before 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.  Leon stumbles on a plot against the British involving disenchanted survivors of the Boer War. It is only when Eva and von Meerbach return to Africa that Leon finds out who and what is really behind the conspiracy.