When astronomer, Dr. Lily McKee discovers a massive asteroid hurling towards earth, she quickly sends her young son to the safety of his grandfather in Dallas, and contacts the director of the Federal Emergency Management, Jack Wallach. The huge fireball kits Kansas with devastating consequences, transforming the city into a hellish maelstrom of rubble and fire. But has Jack and the local firefighters race to rescue the victims, Lily sights a second, even larger asteroid heading straight for Texas.