When a group of hunters genetically modify Graboid eggs, they face an all-out war against the larger, terrifyingly intelligent creatures, and swiftly multiplying Shriekers!

In 1889, seventeen men die under mysterious circumstances, and spooked by recent events, the miners who populate the town leave in droves until there's nothing left but a shell of a community.

Survivalist Burt Gummer returns home to Perfection, to find that the little town has been shaken up again by morphing, man-eating Graboids.