Supported by an unknown helper, the survial begins. The 5 stranded are told late on whose island they have landed. But time is pressing, because a volcanic eruption threatens to devour the island.
Engineer Cyrus Smith, his black servant Nab, war correspondent Gedeon Spilett, sailor Pencroff and his foster son Harbert as well as Smith's dog Top flee in a free balloon from the Richmond, which is besieged in the American civil war. However, a storm blows them into the southern Pacific, where they can save themselves on an unknown island.
The fight for survival begins, supported by an unknown helper. Only late the 5 stranded are told on whose island they have landed. But time is pressing, because a volcanic eruption threatens to devour the island.
