Publisher's Synopsis
As Scruggs, Penny, Jack, and Jean help Doc investigate unexplained power outages and the deaths of two citizens of the town, an old enemy to Doc selects a friend of the Derwoods as an ally. A deadly creature is being pulled to earth to make a home for itself, and the power to control it rests with a top secret laser crystal. Old rivalries and jealousies surface and turn into deadly warfare. And over everything looms the brilliant and deadly Array, poised to invade earth's atmosphere and destroy it.