Overview
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 as Commander Harold 'Alan' Roberts
- Shirley Patterson as Margaret 'Maggie' Hathaway
- William Reynolds as Lt. Jack Carmen
- Henry Brandon as Dr. Carl Hunter
- Douglas Kennedy as Capt. Burnham
- Phil Harvey as Machinist's Mate Steve Miller
- Kenner G. Kemp as Officer at Briefing / Officer on Ship (uncredited)
- Bing Russell as Radio Operator (uncredited)
- Bert Stevens as Officer at Briefing (uncredited)
- Tom Coleman as Man at Briefing (uncredited)