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' .
During the Civil War a group of Union soldiers and two Confederates escape the stockade using a hot-air balloon and end up on a strange Pacific island.