AllMovie

This tale of the South Seas featured underwater photography which looked credible enough even though it was shot on the back lot. Captain Musgrove (Ralph Lewis), the ruthless lord of an island, harvests pearls from the surrounding waters while keeping the native divers away. Frederico, a white diver (Harmon McGregor), desires Musgrove's daughter Ethel (Virgina Brown Faire), but she's in love with Jean, a beachcomber (Van Mattimore). When the captain runs down the pearl-poaching Tagu (William Anderson), son of the native chief (Smoke Turner), Tagu attempts to get vengeance by tying a knot in Frederico's air tube. Jean saves Frederico, who then turns on him, leaving Jean to die when he is inadvertently trapped by a giant clam. But the beachcomber manages to free himself, and when the natives riot against Musgrove, Jean saves Ethel, becomes the boss of the pearl fisheries, and brings peace to the island.