In this South Seas adventure, a sea captain teams up with lovely island princess help her vanquish the brutal smugglers who are forcing her people to dive for pearls. There are French colonialists on the island and a judge is there to ensure justice. Unfortunately, he is crooked, and after the smugglers are captured he gives them a choice: they can help him retrieve a sunken treasure or they can go to prison. They choose the former, but afterward, they double-cross the judge. Fortunately, the sea captain is still around to see that justice is served.