When Queen Okalana is shown a set of spark plugs from the plane, she becomes suspicious that a god needs machinery in order to fly, and wears the plugs as a necklace. Curtis advises a lovesick Lona to proceed with her marriage to Alcoa in order to make Ken jealous. Each time Toby comes close to revealing his human foibles, such as eating, he is saved by sheer luck, or Pete's ingenuity. Alcoa and high priest Kahuna are determined to prove that Toby is not a true god, as any man who pretends to be a god will be executed by a man-eating plant.
Curtis claims it is the mark of "Momo" so that the islanders will back off. Lona's jealous fiancé Alcoa picks a fight with Ken, but when Ken strikes him, his ring leaves an imprint on Alcoa's chin, and Dr. Lona performs a dance during which she places a flower lei on Ken and tells him to respond with a kiss. He then saves Pete and Ken by dubbing Pete, "Twerpo," his slave, and Ken, "Gogo," the master mechanic of the "iron bird." Lona falls in love with Ken and threatens to reveal Toby's true identity to her people unless Ken agrees to let her leave the island with them. The execution is halted, and Toby is hailed as a god. Queen Okalana deems that Toby, Pete and Ken should be executed but Toby squirms so much that the executioner is unable to chop his head off, and Lona suddenly sees a resemblance between Toby and a carving of their sacred god, Momo. Curtis, an American physician who had been shipwrecked there years earlier with his daughter Lona, advises the queen of the islanders, Queen Okalana, that the plane is evil as it comes from the land of the "Rising Sun." When Toby, Pete and Ken revive from the crash, they are surrounded by beautiful English-speaking island women. The second island is occupied, however, and Dr. They are shot down, however, by an American battleship and are stranded on another island. After thirteen days, a Japanese plane lands on the island and the three Merchant Marines capture the Japanese and steal their plane. During World War II, Merchant Marine Toby Smith tells his shipmates the true story of what happened to him the previous summer: While sailing out from Australia, Toby's ship is torpedoed and he, bosun Pete Jenkins, and radio officer Ken Masters are marooned on a nearby island.