Richard Connell's famed story gets an action-packed treatment with star Richard Widmark as American writer Mike Latimer, who falls for journalist Katy Connors (Jane Greer) and crash-lands with her in the Mexican jungle, where they're hunted by a British traitor. Browne (Trevor Howard), a notorious Nazi sympathizer, chases Mike and Katy through the dangerous and dense terrain as they use their combined skills to outwit their determined pursuer.