A spoof of King Kong, King Dong (or Lost on Adventure Island). A young woman runs away from home and sets off to sea with her 3 friends. Everything is fine until a battleship collides with their sailboat and leaves a young couple washed up on a prehistoric island with ferocious dinosaurs and the giant King Dong.

After a plane crash, the surviving female passengers and a male prisoner who was being transported aboard the plane are stranded on a desert island.