Frankie (Avalon) literally falls for a new gal in town, pop singer Sugar Kane (Evans), leaving his sweetheart, Dee Dee (Funicello), in the lurch. Amidst this love triangle, Frankie & Annette's beach buddies get into hot water with a mermaid, the local motorcycle gang and the evil South Dakota Slim.
- Frankie Avalon
- John Ashley
- Timothy Carey
- Annette Funicello
- Linda Evans
- Buster Keaton
- Marta Kristen
- Harvey Lembeck
- Paul Lynde
- Jody McCrea
- Don Rickles
- Earl Wilson
- Bobbi Shaw
- Deborah Walley
- Producer: Samuel Z. Arkoff
- Director: William Asher
- Screenplay: William Asher
- Composer: Les Baxter
- Co-Producer : Anthony Carras
- Cinematographer: Floyd Crosby
- Editor: Fred R. Feitshans Jr.
- Producer: James H. Nicholson
- Editor: Eve Newman
- Screenplay: Leo Townsend
