On their way to Panama, a fierce nighttime storm buffets their airliner, "The Silver Queen". A gas cylinder is shaken loose and knocks a door open. Tommy falls near the door; Larry grabs the child and hands him to a passenger, but the plane lurches and Larry falls out the door. An engine fails and the pilots are forced to crash-land in a jungle. In the morning, the professor recognizes plants of the Amazon rainforest: the aircraft has been blown far south of where rescuers will search; the nearest civilization is across the mountains.