A missionary from America's midwest enlists Jai's help to fulfill her father's last wish and deliver an organ to a primitive tribe, but their boat is disabled.

Tarzan rescues Charity and Jai from hostile natives, but then the trio are pursued by another tribe who are after the guns that Jai has hidden.

General Basil Bertram and missionary Charity Jones return in this two-part story, and this time must ally with Tarzan against a band of slavers who have been taking people and destroying villages.

After the village is burned and Tarzan, Jai, the chief, and numerous villagers are captured by the slavers, General Bertram and Charity must work together despite their differences. Tarzan escapes his captors and comes to their aid. He decides to follow behind the slavers to discover who is leading them.