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'.

Director: Cy Endfield

Writer: John Prebble, Daniel B. Ullman, Crane Wilbur

Actors: Michael Craig, Joan Greenwood, Michael Callan

Production: N/A