![The Land Unknown](https://image.tmdb.org/t/p/original//ckoND08stPEqhmY6qC4cqbc7zYA.jpg)
![The Land Unknown](https://image.tmdb.org/t/p/w200//1kJNx5GJTnp2rLZV8I3Aq4rVL4W.jpg)
The Land Unknown
1 hour 18 minutes1957-10-15
5.7
Watch Trailer
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.
Cast
![Jock Mahoney](https://image.tmdb.org/t/p/w200//2OZfov2M2v393PQUyTgqEiPYkgx.jpg)
Jock Mahoney
Commander Harold 'Alan' Roberts
![Shirley Patterson](https://image.tmdb.org/t/p/w200//1AD46T38t8vaOjo6TqiQ552s8tU.jpg)
Shirley Patterson
Margaret 'Maggie' Hathaway
![William Reynolds](https://image.tmdb.org/t/p/w200//wJVxNBeFgCb32jR2QQGYH0r1T80.jpg)
William Reynolds
Lt. Jack Carmen
![Henry Brandon](https://image.tmdb.org/t/p/w200//3G1BXRw0v0NmKyeG8OexyHLtqHc.jpg)
Henry Brandon
Dr. Carl Hunter
![Douglas Kennedy](https://image.tmdb.org/t/p/w200//azKsJqwO84KgxLaEPLQnqztKLsY.jpg)
Douglas Kennedy
Capt. Burnham
![Phil Harvey](https://image.tmdb.org/t/p/w200//a8zJr8r81WT014sW85fcJjEdYBS.jpg)
Phil Harvey
Machinist's Mate Steve Miller
![Kenner G. Kemp](https://image.tmdb.org/t/p/w200//mz41FbZ3IlzpcLBI0IxjS3Jr1lB.jpg)
Kenner G. Kemp
Officer at Briefing / Officer on Ship (uncredited)
![Bing Russell](https://image.tmdb.org/t/p/w200//gUjByx4bQgiIPMyOMqBuCNBEvrg.jpg)
Bing Russell
Radio Operator (uncredited)
![Bert Stevens](https://image.tmdb.org/t/p/w200//nEIxsXjWCtGDKcECuKL8qsqwGcb.jpg)