A combat veteran leads a rag-tag group of survivors in an all-out war against invading aliens! The world's�cities have been destroyed by a�ghastly holocaust from space. The few remaining souls eke out an existence in the ruins, ransacking skyscrapers for food, and living in the city's sewers like vermin.�Alex Ward, a man who has lost everything, and a beautiful woman named Jo, unite the survivors�to battle the slithering menace of the Colloids,�parasites whose seed has drifted through space for millions of years in search of the perfect world for their depredations--Earth! When Alex and Jo discover the Colloids' ultimate biological purpose, the motley�band of guerillas�are put to the test in a monstrous battle for the future of mankind!