The Monolith Monsters

In San Angelo, California, the geologist Ben Gilbert finds a piece of meteorite in the desert and brings it to his office. However, the black rock has a chemical reaction with rain water and the next morning, Ben's co-worker Dave Miller finds him petrified in the office. Meanwhile, Dave 's girlfriend, the teacher Cathy Barrett, brings her class to the desert and the girl Ginny takes a piece of meteorite home. When Cathy sees Ben's rock, she recognizes it and she goes to Ginny's house with Dave and a police officer. They find the farmhouse destroyed, Ginny's parents dead and the girl in shock with one hand turning into stone. Dave seeks out his former professor Arthur Flanders to help him to solve the mystery while Ginny is taken to a Medical Research Institute in Los Angeles for the famous Dr. Steve Hendricks to try to find the cure. Will they succeed?