Mary Brooks' father, who has been studying ancient tribes, falls into the hands of "the people of Zar, god of the Emerald Fingers." Tarzan helps Mary locate her father, rescues everyone from the High Priest of Zar, and takes Mary to his cave.

• Sol Lesser Productions
• Buster Crabbe
• Julie Bishop
• Edward Woods
• Philo McCullough
• E. Alyn Warren
• Mischa Auer
• Matthew Betz
• Frank Lackteen