The family members collaborate to create a home for themselves in the alien jungle environment. They gradually learn to use the unfamiliar plants and animals to create what they need to live and thrive. They have many adventures and challenges and make many discoveries. The mother, however, misses her elegant home and community in England, and wishes to somehow be rescued and return. The father slowly convinces her that living in the natural environment is better for the family and that they are meant to be there. In the end, Fritz and Jack board a ship home while the rest of the family stay on the island.