The movie opens with credits and title over a black background. The setting is Guayjorm, Mexico. Inside an administration building is Susan Winter (Gloria Talbott). She is asking for permission from the Governor (Vincente Padula) to fly over a restricted area of his state--the Tarahumare Mountains. She explains that she has been planning three years to rescue her fiancee, Bruce Barton, whose airplane crashed in the area. The Governor asks about her colleagues and their reasons for helping. Despite her best efforts, the Governor is adamant--the answer is no. To make sure his orders are followed he tells her he will place a police escort on the plane. As their airplane is a four place model, this means someone must stay behind.Russ Bradford (James Craig) is at a magazine stand trying to buy a sports magazine. He doesn't speak Spanish and the salesgirl (Marlene Kloss) doesn't speak English. He joins the pilot, Lee Brand (Tom Drake) and Marty Melville (Lon Chaney, Jr.) at an outdoor table for lunch. They are waiting for Susan to return from her meeting with the Governor. Susan arrives and joins them at the table. They ask how things went. She responds, "I couldn't do a thing with the Governor." Lee doesn't think there will be any problems. He has a plan for the security escort. They drive out to the landing strip and are met by a policeman (Manuel Lopez). Lee gets in the airplane and starts the engine. It would appear that Marty will stay behind as Russ and Susan board the plane. Marty lures the policeman away from the plane, a Stinson Voyager, and then decks him and boards. The prop wash wakes the policeman and he fires at the departing airplane. The tower calls the plane and orders it to return to the field. Against orders, they continue their flight towards the restricted area of the Tarahumare Mountains. During the flight, Marty explains his reason for financing part of the trip, namely Uranium exploration. Marty brought a scintillator to locate his claim. When the scintillator tops out the airplane encounters turbulence. Lee announces that they are near the area where Bruce Barton was lost. Susan tells Lee to circle the area. Unfortunately, Marty is starting to panic and slugs the pilot. He tries to take over flying, but obviously doesn't know how. Russ tries to restrain Marty as Marty has the airplane in a steep dive. Lee comes to in time to take control and safely lands in a canyon with just enough room to stop. The four pile out of the plane. Lee sizes up the location and asks, "Well she's ok, but how are we going to get out of here?"Marty starts his search for Uranium. Russ cleans out his pipe and spots a huge lizard approaching. He calls to Lee and Susan to come, but by the time they walk over the creature is gone. He dismisses it as his imagination. Marty has found his Uranium. He claims it is a very rich deposit worth millions or even billions.That evening they sit by the fire. Susan locates their position on the chart and where Bruce crashed. Russ verifies it should only take a day to hike there. Marty announces that he will not join them. He's found what he came for. They are startled by a loud roar. The next morning Russ and Susan prepare for the hike. Marty tries to convince Lee to fly him out to file his claim. Russ and Susan begin their hike. She believes it is possible that Bruce is still alive, but even Russ thinks it is a long shot at best. He also is in love with Susan and proclaims same to her while they rest. They hear a loud squeak and spot an immense rat. An even larger Eagle attacks and kills the rodent. They run back to their encampment. They hear the engine start up and suspect they are about to be abandoned. Lee sees them and shuts down. Lee explains to Susan and Russ that he was just testing the motor. Susan demands the keys as Marty feigns surprise at this
Output: Who is Bruce Barton's Girlfriend?