The wedding of Val Stevens and Lucille Gordon on a small Pacific island is interrupted by a shipwreck during a storm. The wedding resumes, but immediately after the exchange of vows, Val rushes off to rescue Eric Blake and Capt. Deever, who were aboard the ship. Dr. Hardy, the island's doctor, is suspicious of their presence near the island which is not in any regular traffic pattern, and questions Eric closely. Later, he is the first to realize that Eric and Lucille are falling in love. When Val's pearl divers refuse to dive because they are afraid of something in the water, Dr. Hardy suggests that Eric accompany Val to another island to straighten out the problem, hoping to prevent Eric and Lucille from staying alone together. Lucille, however, decides to travel with the two men. On the island, Val dons a diving suit and, to demonstrate the safety of the waters, plunges into the ocean at the spot where several divers have disappeared. He encounters an enormous octopus and battles with it. During the struggle, his lines come loose and Eric rescues him, killing the octopus. Now that the octopus is dead, the divers return to work. Eric rescues Val a second time when two natives attempt to steal the pearls and Val gratefully invites Eric to join his business, but Eric, who has asked Lucille to leave Val, announces that he is leaving the island. Before he goes, Eric is told by Dr. Hardy that he knows he has come to find Val who committed a murder in the United States. Capt. Deever, however, believes that Eric is the wanted man and tells Val that he is going to turn him in for the reward. Val angrily throws him out of the room and Deever tells him that Eric is making love to Lucille. Val runs home to find Eric and Lucille talking. When Eric confesses that he was hunting for Val, Deever overhears the conversation and, realizing he has been hunting the wrong man, breaks in and holds Val at gunpoint. Val is saved when Lucille's grandfather shoots Deever. Understanding that Lucille intends to stay with Val, Eric leaves the island to report that the man he was hunting is dead.