Two children search for their castaway father in this Disney movie based on Jules Verne's novel &NFi;Captain Grant's Children&NFi_;. Mary and Robert Grant (Hayley Mills and Keith Hamshire) know their father must still be alive, because they have a message in a bottle telling them where he is. With the help of a professor (Maurice Chevalier), they set off to find their father, encountering gigantic birds, volcanoes and a gunrunner along the way.