Plot

Tarzan is called to Brazil by an old friend (The Professor) to help stop the Jaguar Cult, led by Barcuma, from running off Dr. Ann Philips who is there to give much-needed inoculations to native villagers along the Amazon River.

Tarzan is assisted by Baron (a lion) and Cheeta (a chimpanzee), both of whom he brought from Africa, as well as Captain Sam Bishop, a riverboat pilot, and Bishop’s young ward, Pepe.