Benji is a stray who has nonetheless worked his way into the hearts of a number of the townspeople, who give him food and attention whenever he stops by. His particular favorites are a pair of children who feed and play with him against the wishes of their parents. When the children are kidnapped, however, the parents and the police are at a loss to find them. Only Benji can track them down, but will he be in time? If he can save the day, he may just find the permanent home he's been longing for.

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.

Francis is desperate: her parents want to force her to come with them on vacation to Hawaii - just during the two weeks when her beloved "Moondoggy" is home from College. When he suggests her to go for it, she's even more in panic - doesn't he care to be with her? So she sets out for Hawaii in the worst mood. On the plane she meets the sociable Abby, who gives her the advice to forget about Jeff - and regrets it shortly after, when Francis follows the advice and steals her boyfriend Eddie, a famous dancer. But then Jeff discovers he's missing Francis...

Band singer/race driver Mike McCoy must choose between marrying a beautiful rich girl and driving her father's car in a prestigious race.

An astronaut goes into space with a chimpanzee. When they return to Earth after their orbit, it is discovered that the chimp has the brains of the astronaut, and the astronaut has the brains of the chimp. Complications ensue.

Male chauvinist Mike attempts to get an intelligent burgeoning feminist Delilah into his harem. When she resists, Mike then poses as his brother Herbert, but in the process falls in love with Delilah.

Two college boys from SoCal attend a spring break vacation at a ski lodge in Idaho to get insider tips on how the president of the ski club manages to attract so many girls as a way to make amends to their girlfriends. Alongside this relatively simple endeavor are ice-skating polar bears, love triangles, musical numbers, and quick-switching in and out of drag to achieve the goal of discovering what went wrong in the boys' romantic lives.

A corpse has 24 hours to mastermind a good deed without leaving his crypt, to go "up there" and have his youth restored.

The Willards from Terre Haute, Indiana travels abroad for the once-in-a-lifetime vacation in Paris, France. Harry Willard believes that the greatest problem will be avoiding tap water, but bringing his three children will prove to be more troublesome

Trapped in a cave, five men cut the arm off of another companion in order to ward off starvation. After they are saved, their victim seeks revenge on them one by one.