Tarzan Triumphs: Zandra, white princess of a lost civilization, comes to Tarzan for help when Nazis invade the jungle with plans to conquer her people and take their wealth. Tarzan, the isolationist, becomes involved after the Nazis shoot at him and capture Boy: "Now Tarzan make war!".
Tarzan´s Desert Mystery: A letter from Jane, who is nursing British troops, asks Tarzan´s help in obtaining a malaria serum extractable from jungle plants. Tarzan and Boy set out across the desert looking for the plants and wind up ruining a German´s attempt to capture a wild horse. They arrive in an Arab city and rescue a stranded American lady magician, sentenced to be hanged for carrying a secret message to the Sheik. To obtain the plants, Tarzan must fight prehistoric monsters, Nazis, and so on..