American International Pictures produced a series of seven beach films.
An anthropology, Professor Robert Orville Sutwell is secretly studying the "wild mating habits" of Southern California teenagers who hang out at the beach and use strange surfing jargon. After he temporarily paralyzes Eric Von Zipper, the leader of the local outlaw motorcycle club, who was making unwanted advances on Dolores, she develops a crush on the Professor. Her surfing boyfriend Frankie becomes jealous and begins flirting with Ava, a Hungarian people waitress. Meanwhile, Sutwell's assistant Marianne further develops her crush on the Professor. Von Zipper and his gang plot to bring down Sutwell, only to be thwarted in the end by the surfing teenagers.
Frankie, Dee Dee, and the beach party gang hit Malibu Beach for another summer of surfing and no jobs only to find their secret surfing spot threatened by a gang of bodybuilders, led by the dim-witted coach Jack Fanny (Don Rickles).
School is out and the teenagers head for the beach. All is well until millionaire Harvey Huntington Honeywagon III (Wynn) comes around, convinced that the beachgoers are so senselessly obsessed with sex that their mentality is below that of a primate – especially Honeywagon's wunderkind pet Common chimpanzee Clyde, who can surf, drive, and The Watusi better than anyone on the beach. With the teenagers demoralized and discredited, Honeywagon plans to turn Bikini Beach into a senior citizens retirement home.
Teen aged Martian intelligence officer 006, named Gogo (Tommy Kirk), is sent to Earth wearing an usher's uniform to prepare the way for a Martian invasion. The first earthling he meets, Aunt Wendy (Elsa Lanchester), is an eccentric widow who runs a dress shop. She has Gogo, now calling himself George, get dressed in a swimsuit and sends him to the beach. There he meets her nephew, Big Lunk (Jody McCrea), who enjoys volleyball but has little interest in romance, which is frustrating for his girlfriend Connie (Annette Funicello).
A singer, Sugar Kane (Linda Evans), is unwittingly being used for publicity stunts for her latest album by her agent (Paul Lynde), for example, faking a parachuting stunt, actually performed by Bonnie (Deborah Walley).
Todd Armstrong (Avalon) and Craig Gamble (Hickman) are California college Undergraduate education who unsuccessfully date co-eds Linda Hughes (Deborah Walley) and Barbara Norris (Yvonne Craig). Arrogant, handsome, athletic classmate Freddie (Aron Kincaid) has no such problems and chooses not to fight off all the women chasing after him. As president of the Ski Club, Freddie organizes a midterm vacation trip to ski country (in gorgeous Sawtooth National Forest) in Idaho. Although they know nothing about skiing, Todd and Craig follow Linda and Barbara on this bus trip, to try to learn "the secret of Freddie's technique".
Frankie (Frankie Avalon) goes to Tahiti on United States Navy Reserve duty. While cavorting with local girls, Frankie realizes that Dee Dee (Annette Funicello) might be disloyal to him. When Frankie seeks help from a witch doctor (Buster Keaton), the witch doctor sends a sea beauty, Cassandra (Beverly Adams), to lure Ricky (Dwayne Hickman), an advertising exec, away from Dee Dee.
Frankie Avalon and Annette Funicello are a husband and wife living in Ohio — far from the surf and sand of their earlier lives together. Frankie is a stressed out car salesman and former "Big Kahuna" of the surf scene in California while Annette bottles her own sense of angst up in a bevy of shopping. Together they are raising a son, Bobby, who is in the throes of rebellion against his seemingly square folks.