Summary:
A Navy expedition is sent to explore a mysterious warm-water region shrouded in the ice of Antarctica. When a fierce storm drives them into a cloud bank, their helicopter is disabled. Descending through the heavy fog into a deep chasm, they encounter a hot, tropical landscape of prehistoric terror.... Full Summary >>

Cast:
Jock Mahoney - (Commander Hal Robers)
Shawn Smith - (Margaret Hathaway)
William Reynolds - (Lieutenant Jack Carmen)
Henry Brandon - (Hunter)
Phil Harvey - (Steve Miller)
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