After a nature lensman die on duty assignment in Republic of Venezuela, a toxicant spider hitch a drive in his casket to his hometown in rural Golden State, where arachnophobe Dr. John Ross Jennings has merely travel in with his married woman, mollie, and immature son. As town resident get down turn up dead, Jennings get down to surmise spider, and must confront his fear as he and no-nonsense terminator Delbert McClintock battle to halt a deathly infestation.