Return to the Blue Lagoon

Two young castaways die, leaving their two-year-old son alone in the boat. The boy is rescued at sea by a ship, where Sarah Hargrave, who is traveling with her young daughter, takes care of him. When a cholera epidemic breaks out and, to avoid certain death, Sarah and the children are placed in a small boat that, after several days adrift, reaches a desert island. When Sarah dies, the young people are left alone and must fight to survive.