Eight Legged Freaks (originally titled Arach Attack, under which it was released in some parts of Europe and other countries around the world) is a 2002 monster comedy action film directed by Ellory Elkayem and starring David Arquette, Kari Wührer, Scott Terra, and Scarlett Johansson. The plot follows a colony of spiders that are exposed to toxic waste, causing them to mutate into gigantic, monstrous creatures and attack a small American mining town.
On a highway outside of the quiet mining town of Prosperity, Arizona, a truck driver carrying a load of chemicals swerves to avoid a rabbit, causing a barrel of toxic waste to land in a reservoir. An exotic spider farmer named Joshua Taft has been making regular visits to the site, where he collects crickets for his spiders. Because the spiders have ingested the toxins, they have grown in size and appetite. Joshua shows Michael "Mike" Parker, a local boy, his collection, including an enormous female Orb Weaver from Brazil named Consuela. After Mike leaves, Joshua is bitten by an escaped tarantula and accidentally knocks down the spider cages. He, along with his pet parrot, is killed by the spiders and, after devouring him, the spiders grow to even larger proportions.
One week later, Mike again goes to visit Joshua, but is stopped by his mother, who is also Sheriff Samantha "Sam" Parker, and Deputy Peterson "Pete" Willis pulling the toxic barrel out of the pond. Wade, the Mayor of Prosperity, is holding a town meeting in the mall about whether they should sell the mines and relocate. Christopher "Chris" McCormick, whose father owned the mines before he died ten years ago, shows up and stands against Wade's proposition. Chris also sparks a romance with Sam. Meanwhile, Harlan Griffiths, an eccentric extraterrestrial enthusiast, is broadcasting his theory that various missing pets around town have been abducted by extraterrestrials. Inevitably his theory is dismissed as the product of a deranged imagination. Mike sneaks out on foot and finds Joshua and the spiders missing, the farm covered in webbing, and the dead body of Joshua. Although he sees an enormous spider shadow in the mines and tells Chris that the spiders have grown to enormous sizes, based on a giant spider leg he found at the mine entrance, Chris doesn't believe him. Meanwhile, the mines have reopened with the miners searching for a famous gold lode.
One miner is eaten by a gigantic spider, whose clan have made the mines their home. Seeing as the entire town is connected in some way to the mines, spiders show up in many different places. Pete's cat has a fight with one of the spiders in the air vents before being eaten and some of the ostriches on Wade's farm are devoured by trapdoor spiders. Ashley, Sam's daughter, breaks up with her boyfriend Bret, and he and his motorcyclist friends are chased by jumping spiders, with him being the only survivor, accidentally cutting off the telephone line and being stuck in the mine. Chris finds out that his Aunt Gladys and her dog are abducted by a male orb weaver in their basement. Sam is convinced Chris and Mike are delusional. However, her skepticism fades and she realizes that Chris and Mike were right all along when she witnesses a giant male orb-weaver attempting to abduct Ashley and Chris. Sam kills the spider with a shotgun and saves them both. Meanwhile Bret, still wandering the mines, gets a good peek at the giant Consuela during her feeding.
Sam contacts Pete and tells him to bring all guns in the police station's possession and they escape to Harlan's trailer, knowing he has a radio station that he operates from within his trailer. As Sam broadcasts the threat over the radio, a giant tarantula, the "tank" of the horde, assaults his trailer but they manage to escape. As the town is besieged by vicious spider hordes, many people are eaten, Chris tries to convince Harlan that the spiders are "from Earth", but ends up convincing him that they are "Spiders from Mars" to make him happy, Sam tells everybody to evacuate to the mall. Chris, Sam, Mike, Ashley, Harlan, Wade and many other townspeople all escape and barricade themselves in the mall (but Wade flees into the mines and locks the gate before the attack) and defend themselves from the spiders. Meanwhile, Harlan and Chris climb onto the roof and ascend the radio mast and try to get a signal to call the army as they are being attacked by the spiders, but are believed to be pranksters. Harlan jumps from the roof, after the tarantula breaks open the gates and lets the spiders enter the mall, and lands in some bushes, where he meets up with Pete. The two run from spiders as Chris meets up with the remaining townsfolk and goes down to the basement. Meanwhile Bret, still wandering the mines, encounters the cowardly Wade before his abduction.
While the townsfolk are in the basement, Bret arrives on a forklift that brings down the locked gate, and they all head to through the mines straight to the front entrance, discovering the methane-filled tunnels. After losing Norman and freeing Wade, Chris goes to look for his Aunt Gladys in the mines and finds her and the gold his father was searching for, but is confronted by the gigantic Consuela. He uses perfume to distract the spider and then escapes using Bret's motorcycle. Chris then blows up the spiders and the mines utilizing Gladys's smoking addiction and the high concentrations of methane gas. The police finally arrive. They had not believed the reports of the spiders but believed Harlan's theory that the assailants were extraterrestrial in nature, until Pete tells them that the assailants were "just spiders, that had ingested extremely high levels of toxic waste." He tries to show this is true by showing his head, thinking (since it was exposed to the toxic waste) that his hair grew back, but unfortunately it did not.
As the story ends, Harlan is heard making a radio report about the spiders. He concludes that the town has decided to cover up the whole incident, but have let Harlan continue broadcasting the incident, and Chris reopened the mine. He then ends the film by giving a toothy smile, revealing several golden teeth.