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' . Written by Stewart M. Clamen 　　In 1865, during the siege of Richmond, Virginia, the union soldiers POW Captain Harding, Neb and Herbert escape in a balloon during a storm with two confederate prisoners, Sergeant Pencroft and the journalist Spilett. The uncontrollable wind takes the balloon to a mysterious island in the South Pacific in the area of New Zealand. Captain Harding self-proclaims the leader of the group and they look for food; sooner they discover that they are stranded in an island. Further, they are attacked by a giant crab that becomes their first meal. Along the days, they build a shelter and finds that the island is inhabited by giant animals. A couple of days later, they find two castaways on the be