It Came from Beyond the Mountain

Man treads on dangerous ground while trying to tame the atom, but power-mad General D.E. Williams doesn't care - it's his last day on the job at Pearl Lake Weapons Range anyway. His reckless detonation of a nuclear bomb has terrible consequences for the innocent. Can he be stopped in time? Well, no. His actions lay waste to a military base and unleash an eight-legged mutation that exacts revenge on all who get in its way.