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.

"BEHIND A BARRIER OF ANTARCTIC ICE... A PARADISE OF HIDDEN TERRORS!"

Credits

Virgil W. VogelDirector

Jock MahoneyCommander Harold 'Alan' Roberts

Shirley PattersonMargaret 'Maggie' Hathaway

William ReynoldsLt. Jack Carmen

Henry BrandonDr. Carl Hunter