Meet Calvin Beach, a disturbed postal clerk with a grudge against illegal immigrants. A man who plans to keep postal inspectors busy with homemade bombs. He will succeed, too, because he has a patsy chained in an abandoned Titan missile base in the desert. But Calvin is also being watched by a rookie postal inspector named Victor Kazy--the one person who suspects the police are looking for the wrong man. When Victor finally uncovers the truth about the abduction of his partner Maria, watch Calvin go "postal."