Synopsis
During the US Civil War, Union POWs escape in a balloon and end up stranded on a South Pacific island, inhabited by giant plants and animals. They must use their ingenuity to survive the dangers, and to devise a way to return home. Sequel to '20,000 Leagues Under the Sea' .
Cast

Michael Craig
Capt. Cyrus Harding

Joan Greenwood
Lady Mary Fairchild

Michael Callan
Herbert Brown

Gary Merrill
Gideon Spilitt

Herbert Lom
Captain Nemo

Beth Rogan
Elena Fairchild

Percy Herbert
Sgt. Pencroft

Dan Jackson
Cpl. Neb Nugent
Harry Monty
Pirate (uncredited)
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