Residents of a rundown French apartment building battle against an army of deadly, rapidly reproducing spiders.

Filme pasakojama, kaip ateivių laivas sudūžta Žemėje ir žemės gyventojuose apsigyvena šios keistosios būtybės - jie panaudoja žmonių kūną dauginimuisi ir kuria savotišką baimę keliančių keistų padarų armiją. Ją sunaikinti pasiryžusi armijoje tarnaujanti moteris ir brolio aplankyti atvykęs buvęs policininkas.

When the residents of a luxury apartment complex outside Montreal are infiltrated by parasites and transformed into violent, sex-crazed maniacs, it's up to Dr. Roger St. Luc to contain the outbreak from spreading to the city.

In Sector 7, an underwater oil field located south of Jeju Island, Hae-jun is working as a marine equipment manager on an oil prospecting ship called Eclipse. Joining the crew later is Jeong-man, a former colleague of Hae-jun's father, assigned to Eclipse as captain. Though his job is to oversee the withdrawal of the ship, he suggests conducting some drilling one last time.

While on a flight home from Colombia, the plane that Dr. Carrie Ross and her daughter are on is attacked by bullet ants whose sting is the most painful and deadliest on the planet. Joining forces with air marshal Ethan Hart, Dr. Ross, an entomologist, tries desperately to save the flight from disaster. In the end, their struggle brings them closer together and offers the couple hope for the future.

While trailing Forest Ranger Charles Carter, who is suspected of permitting lumber man Henry Mitchell to cut restricted timber, Gene fires at a dangerous mountain lion and apparently kills Carter. Actually, Bill Wright, Mitchell's associate, killed Carter because the ranger had discovered tussock moth infestation in the forest, and if the infestation was not reported, the trees would die and have to be cut, thereby profiting Mitchell and Wright. In order to compensate the best he can, Gene sells his sportsman's camp and gives the money to Carter's daughter Helen . En route to Texas, Gene discovers the infestation and is assigned by the Forest Department to supervise the program of spraying the area with DDT from the air. After the first day of spraying, the DDT is blamed by furious stock men for the many animals found dead of poisoning.

Nuo (1940-m.) svetimos būtybės žinomos kaip «GRAYS», buvo pastebėtos visame pasaulyja su mintimi, kad jos aplanko mūsų planetą, kad ištirtų mūsų fiziologiją ir civilizaciją, kol galų gale jie įsiverš į mūsų planetą...,bet kas jeigu męs klystame? O kas jeigu jie čia su tikslu apsaugoti mus. Po to, kai meteoritas nukrenta į žemę, jis pažadina nežemišką būtybę viduje, jauna moteris, pagrobta ateivio «GRAYS», kad padėtų išnaikinti ir sunaikinti būtybę, prieš pasiekiant antrajam meteoritui žemę, kuris nukrito į žemę prieš kelis dešimtmečius išlaisvinęs mirtiną užkratą.

Deadly spiders are accidentally unleashed from a top-secret military installation. Army specialists and Tanks are called in to exterminate the deadly predators, but the outbreak is worse than expected. Weapons of mass destruction have little or no effect on the venomous spiders. Civilians are strangled with spider webs and eaten alive. The Military in a desperate effort to eradicate the killer spiders, decide to demolish the entire city.

A woman becomes obssessed with getting rid of the moths in her house.

Dr Michael Mosley explores the bizarre and fascinating world of parasites by turning his body into a living laboratory and deliberately infesting himself with them.

The limit of tension in a family reaches its peak when the father discovers a spiders nest.

A young woman comes down with a mysterious illness that infests upon her stomach.