In a small town in Arizona, life goes by peacefully until a mysterious phenomenon begins to affect the population. A series of inexplicable deaths shatters the tranquility of the place, and all signs point to a large group of spiders that, after being disturbed from their natural habitat, unleash their fury. A local veterinarian, Dr. Robert "Rack" McClintock, played by the charismatic William Shatner, tries to unravel the mystery behind these creatures, which seem to exhibit unusually aggressive behavior.
As Rack delves deeper into the investigation, he realizes that the spiders are poisoning the ecosystem of the town, driving the residents to the brink of panic. With the help of his friend, an entomologist, and a group of villagers, Rack must act quickly to confront the spider invasion, but the lack of experience and the locals' disbelief jeopardize his efforts. As the odyssey unfolds, the tension mounts, and terrifying scenes erupt as the spiders attack voraciously.
With a dark atmosphere and a message about the dangers of interfering with nature, this film blends horror and adventure, keeping the audience on the edge of their seats as a battle between man and one of nature's most feared creatures ensues. The conclusion serves as a chilling reminder that sometimes, what we do not know can be more lethal than we ever imagined.