Hardened criminal Maggie Hayward's consistent violence, even in police custody, ends in the execution chamber. However, top-secret US government agent 'Bob' arranges a staged death, so Maggie can be elaborately trained as a phantom killer and subdued into obedience.
Investigating the mysterious deaths of a number of farm animals, vet Rack Hansen discovers that his town lies in the path of hordes of migrating tarantulas. Before he can take action, the streets are overrun by killer spiders, trapping a small group of townsfolk in a remote hotel.
A talk-radio host, who specializes in abusing and insulting his audience, gets a call from a disturbed teenage girl who says she is going to commit suicide. After first encouraging her, he has a change of heart and frantically tries to get his listeners to help find the girl before she makes good on her threat.