A strange race of human-like marsupials appear suddenly in Australia, and a sociologist who studies these creatures falls in love with a female one. Is this a dangerous combination?

A property developer wants to take over an Australian beach for a high rise resort. He sends his son to Australia to check out the situation, posing as an exchange lifeguard. He falls in love with a woman who owns the land his father needs for the development and finds himself sympathising with the locals.