A millionaire sets out to prove his theory that his pet chimpanzee is as intelligent as the teenagers who hang out on the local beach, where he is intending to build a retirement home.
In the fourth of the highly successful Frankie and Annette beach party movies, a motorcycle gang led by Eric Von Zipper kidnaps singing star Sugar Kane managed by Bullets, who hires sky-diving surfers Steve and Bonnie from Big Drop for a publicity stunt. With the usual gang of kids and a mermaid...
Anthropology Professor Robert Orwell Sutwell and his secretary Marianne are studying the sex habits of teenagers. The surfing teens led by Frankie and Dee Dee don't have much sex but they sing, battle the motorcycle rats and mice led by Eric Von Zipper and dance to Dick Dale and the Del Tones.
Poor Jerome Littlefield. He wants to be a doctor – but that's not exactly the perfect career choice when you're hopelessly squeamish. So he settles for the job of orderly at the Whitestone Sanitarium, a career move that's guaranteed to keep the patients – and viewers – in stitches!
A fisherman crosses paths with a diamond-smuggling gangster–who is his doppelgänger—and inadvertently takes his place at a resort hotel where he meets a special girl.
