Luke Halpin

An anthropologist is shipwrecked with his family while on an expedition in search of an uncharted South Pacific island.

While widowed Porter Ricks is away at school learning to be a park ranger, his teen-aged son, Sandy, under adult supervision from a neighbor, ...

Sandy is distraught when, having saved Flipper by pulling out a spear, his father insists the dolphin be released. A grateful Flipper, however, ...