On a Polynesian island, Dr. Matthew Lloyd is disgusted by the way trader Sebastian exploits the natives, and he's cast off the island for his views. He finds himself on another isle of the South Seas, where an isolated tribe welcomes him into their harmonious community. But, in this paradise of simplicity, Lloyd discovers a wealth of pearls. He gathers the treasure and, overtaken by greed, sends rescue signals. Unfortunately, Sebastian and his men answer.