As a meteor hurls toward Earth, Dr. Lehman (Christopher Lloyd) and his assistant, Imogene (Marla Sokoloff), scramble to get lifesaving information to Dr. Chetwyn (Jason Alexander), the only man who has the means to prevent the disaster. As the world panics, the countdown begins. Meanwhile, as a police chief (Stacy Keach) tries to keep his small town safe amid the chaos, a madman has his sights set on revenge. Ernie Hudson co-stars.