A contagious virus has spread throughout the land turning everybody who is bitten into zombies. Morgan, Ash, and Johnny believe they are the only humans left, and spend their time lounging in mansions playing video games. When they stumble upon scientist Stef who claims to have a cure, the three of them decide to help save mankind whilst trying to each win her affections.
Young filmmaker Stevie Horowitz (Dean Jacobson) eagerly awaits a meeting with big shot Hollywood film producer J.P. Shelldrake (Tony Curtis). Shelldrake has been desperately searching for a way to avoid problems with the IRS and unpaid millions owed them in back taxes. His brilliant yet overpaid accountant (Phil Proctor) devises a scheme to allow the producer to write off the expenses of his next movie release, but only if the film is a box office flop. Armed with his foolproof plan, Shelldrake agrees to meet with Stevie and screen his film "Lobster Man From Mars" (financed by Stevie's jailed con man Uncle Joey). The plot resembles the premise of The Producers by Mel Brooks.
La vie un peu solitaire de Ben Soledad, un jeune garçon timide de 13 ans qui vient d'emménager dans une nouvelle ville, est radicalement changée lorsque son chien Finn est accidentellement transformé en humain après avoir ingéré un sérum expérimental au cours d'une expérience scientifique menée par le Docteur Madeline Madsen. Ben s'adapte à la situation en apprennant à son nouvel ami à parler, à marcher sur deux pieds et à manger à peu près proprement, tandis que Finn, en retour, enseigne à Ben à attraper un frisbee et à « trouver sa meute » pour faire face aux plans diaboliques du Docteur Madsen.
Samantha, journaliste de la télévision locale, réalise un reportage sur les ambulanciers et accepte de les accompagner en « mission spéciale ». En réalité elle se retrouve avec son caméraman dans une maison close, le Lulu's Paradise, dont les clients et les hôtesses sont soudain affligés d'un mal étrange…
In the year 1960, a plague known as "male-itis" has killed every fertile man on Earth over the age of 12. Boys under the age of 12 have been vaccinated, but they are all rendered sterile. Womankind takes over the world and a woman becomes President of the United States.
A young aviator, Carlos Martin (played by Raul Roulien), is dumped by his girlfriend (Gloria Stuart), and heads on a solo flight across the Pacific Ocean. He has engine trouble and makes an emergency landing on an uninhabited island out in the Pacific. Shortly afterward, a global epidemic of a new disease called masculitis kills every fertile male human on the planet. When efforts to cure the disease fail, the human race is doomed. Humanity's institutions are all run by women, including the Chicago underworld. Carlos escapes the island, and once he returns home and hears the news, it now depends on him to continue the human race.
Guido Renzi et son avocat poursuivent une fille afin de lui rendre le portefeuille qu'elle a perdu. Celle-ci rentre chez elle et se glisse dans l'atelier de son père, un astrophysicien qui est en train de faire une expérience sur une fusée qui doit partir pour Mars. Les deux hommes finissent par être impliqués dans l'aventure.
Some years have passed since the events of the first film. Val has moved away and married Rhonda, while Earl has squandered his fortune on a failing ostrich ranch. He is approached by Carlos Ortega, who informs him that graboids are killing his workers at his oil field in Sonora, Mexico. Earl initially refuses his assistance, but Ortega's taxi driver, Grady Hoover, convinces Earl to change his mind and joins Earl in the hunt, with the oil company paying Grady full fees for his services, as well. Upon arrival in Sonora, Earl meets geologist Kate Reilly, and her assistant Julio, who are scientifically investigating the graboids.
The Stooges tell their infant sons (also the Stooges) a story about the time they blasted to outer space. In this story, the Stooges are assistants to Professor Jones (Emil Sitka) who travel to the planet Sunev (Venus spelled backwards). The planet's leader, the Grand Slitz of Sunev (Gene Roth) greets them cordially enough, but it soon becomes apparent that he has plans to bring prehistoric men to life and take over the planet Earth. No sooner does Professor Jones catch onto the Grand Slitz's plan does he end up being tied up.
Joe's accidental snapshot of a paper plate blown by a breeze, is mistaken for a picture of a UFO. However, Moe and Larry take the credit for the photo, and are paid a huge sum. Angered, Joe leaves the boys for a camping trip, only to meet two genuine and beautiful aliens from Planet Zircon who allow Joe to photograph them. Moe and Larry end up arrested when their UFO picture is revealed to be a fraud. They are put in straitjackets and incarcerated in a psychiatric hospital while Joe becomes a national hero.