After his disastrous venture with the giant ape King Kong, promoter Carl Denham (Robert Armstrong) flees New York to avoid indictment from a grand jury. He sails off with friend Captain Englehorn (Frank Reicher) and soon gets involved with singer Helene Peterson (Helen Mack). When a crooked sea captain kills Helene's father, she stows away on board Denham's boat, which heads to Kong's home on Skull Island. There, the group befriends Kong's son -- who defends them against the resident dinosaurs.