Bob Holcomb will do anything to stop his daughter JoJo from tying the knot with her lazy boyfriend, even move her all the way to Sweden! But once they're "safely" out of the country, JoJo falls for a sly Swedish playboy.

The film takes place aboard an American submarine in the Pacific during World War II. The sub's commander is ordered to stop and pick up an underwater demolition team led by Lt. Hayes, whose mission is to locate and destroy a US submarine sunken in a lagoon off Bikini Atoll before the Japanese are able to raise it and capture the advanced radar system on board.

Teenagers in an old mansion are being murdered one by one. The survivors must discover who among them is the killer before they're all finished off.

Local beach-goers find that their beach has been taken over by a businessman training a stable of body builders.

While on a fishing trip, Harry Baldwin and his family hear an explosion and realize that Los Angeles has been leveled by a nuclear attack. Looters and killers are everywhere. Escaping to the hills with his family, he sets about the business of surviving in a world where, he knows, the old ideals of humanity will be the first casualties.

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 named Lorelei.