High school senior Bobby Chrystal fails his French class, which will block him from entering Yale. His rich, authoritarian father hires an attractive 29-year-old to tutor Bobby over the summer and help him pass a make-up exam. While Bobby's friends lead him away into strange excursions aimed at losing their virginity, Bobby finds all the extracurricular activities he needs with his new tutor.

Test pilot Tuck Pendleton volunteers to test a special vessel for a miniaturization experiment. Accidentally injected into a neurotic hypochondriac, Jack Putter, Tuck must convince Jack to find his ex-girlfriend, Lydia Maxwell, to help him extract Tuck and his ship and re-enlarge them before his oxygen runs out.

A group of Nobel laureates descends on Stockholm to accept their awards. Among them is American novelist Andrew Craig, a former literary luminary now writing pulp detective stories to earn a living. Craig, who is infamous for his drinking and womanizing, formulates a wild theory that physics prize winner Dr. Max Stratman has been replaced by an impostor, embroiling Craig and his chaperone in a Cold War kidnapping plot.

While filing for a divorce, beautiful ex-stripper Roslyn Taber ends up meeting aging cowboy-turned-gambler Gay Langland and former World War II aviator Guido Racanelli. The two men instantly become infatuated with Roslyn and, on a whim, the three decide to move into Guido's half-finished desert home together. When grizzled ex-rodeo rider Perce Howland arrives, the unlikely foursome strike up a business capturing wild horses.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

After a bizarre and near fatal encounter with a serial killer, a newswoman is sent to a rehabilitation center whose inhabitants may not be what they seem.

The Addams Family goes on a search for their relatives. Gomez and Morticia are horrified to discover that Grandpa and Grandma Addams have a disease that is slowly turning them "normal". The only chance they have of a cure is to find a family member hoping that they know a home remedy.

The residents of San Francisco are becoming drone-like shadows of their former selves, and as the phenomenon spreads, two Department of Health workers uncover the horrifying truth.

The eccentric new manager of a UHF television channel tries to save the station from financial ruin with an odd array of programming.

When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.