BEHIND A BARRIER OF ANTARCTIC ICE... A PARADISE OF HIDDEN TERRORS!
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.
Director: Virgil W. Vogel
Screenplay: László Görög
Director of Photography: Ellis W. Carter
Story: Charles Palmer
Producer: William Alland
Commander Harold 'Alan' Roberts
Margaret 'Maggie' Hathaway
Lt. Jack Carmen
Dr. Carl Hunter
Capt. Burnham
Machinist's Mate Steve Miller
Officer at Briefing / Officer on Ship (uncredited)
Radio Operator (uncredited)