Switzerland, 1914. Carl Jung settles down to sleep, but is plagued with a nightmare vision: Europe, flooded with rivers of blood. Uziri, British East Africa, a spat between Tarzan and Jane coincides with the appearance of a malevolent witch doctor. Jane falls under a dark spell and becomes cold and zombie-like. Unable to cure her in Africa, Tarzan must take her to Europe, to a specialist in diseases of the mind: Dr. Sigmund Freud. As the world teeters on the brink of war, Tarzan may be the key to unlocking the secrets of consciousness . . . but all he cares about is getting his wife back . . . and revenge!