The Land Unknown

• Cast: Jock Mahoney, Shirley Patterson, William Reynolds, Henry Brandon, Douglas Kennedy
• Duration: 78 minutes
• Genre: Adventure, Fantasy, Science Fiction
• Rating: 5.6/10
• Release Date: 1957-10-15

Navy Commander Alan Roberts is assigned to lead an expedition to Little America in Antarctica to investigate reports of a mysterious warm water inland lake discovered a decade earlier. His helicopter and its small party, including reporter Maggie Hathaway, is forced down into a volcanic crater by a fierce storm. They find themselves trapped in a lush tropical environment that has survived from prehistoric times.