After Tarzan's estate is destroyed by Arabs Jane is sold into slavery by a man posing as a friendly scientist. Tarzan develops amnesia after a blow to the head. When he recovers his memory (from a later blow) he defeats the villain, recovers the fabulous jewels of Opar, and rescues Jane.

• Universal Pictures
• Frank Merrill
• Natalie Kingston
• Al Ferguson
• Lillian Worth
• Sheldon Lewis
• Paul Panzer
• Clive Morgan
• Charles Gemora