Carnosaur 3: Primal Species

After being driven to extinction, great bloodthirsty dinosaurs come back to life with the assistance of a demented genetic scientist. She plans to replace the human race with a super-race of dinosaurs who will not pollute the planet.

A team of scientists go to a nuclear mining facility to investigate a possible meltdown and instead find a large amount of cloned dinosaurs.

When a series of unexplained vicious animal attacks strikes his community, Sheriff Jim Tanner and his assistant Barbara trace them back to a Dr. Hyde, a former military researcher whose government funding for a dinosaur cloning project was cut. When the Pentagon discovers Hyde obtained foreign backing to continue his experiments, they send in a strike team to save Tanner and Barbara and stop Hyde.

When industry spies break into a top secret lab at Calgorin Industries, they accidentlally let a T-Rex loose, which wreaks havoc into the lab before breaking out into the streets of Los Angeles.