Tarzan's Desert Mystery

With Jane still away in war-torn London doing her duty for the war effort as a nurse, Tarzan and Boy set off to the edge of the vast desert, in Bir-Herari, to retrieve rare and powerful medicinal herbs for the terrible jungle fever. On their way, the father and son stumble upon Connie Bryce--an American messenger posing as a magician--who has important information for the local Sheik, Abdul El Khim, as a couple of Nazi spies tirelessly plot to destabilise the region. However, to further complicate matters, the theft of a proud wild stallion sends Tarzan behind bars, and an imminent death sentence threatens to put a premature end to the expedition. Can Tarzan find his way to freedom, even if he has to travel through the mysterious desert's treacherous fauna and flora?