Asteroid

When Colorado astronomer Dr. Lily McKee discovers that an approaching comet has dislodged several giant asteroids, propelling them on a crash course with Earth, she contacts Federal Emergency Management Director Jack Wallach to help handle the impending crisis. Jack leads an effort to evacuate the city and rescue victims. Meanwhile, Lily realizes that an even more devastating fragment of the comet is headed toward Earth. An attempt to divert the asteroid by firing three Airborne Lasers from F-16s creates a hellish meteor shower - with a dangerously large asteroid heading directly for Dallas! (official distributor synopsis)