In this tale of human survival and personal redemption, an alien species is positioning an enormous asteroid to strike planet Earth, eradicate the human race, and replace mankind with millions of hybrid alien creations. A flawed but determined hero, Michael Kendon, steps out of the ranks of humanity to confront the alien Goliath. A renegade assassin and sole survivor of a crushed resistance movement, he seeks to locate a powerful weapon designed to deflect the asteroid. Using his extraordinary mental capabilities and natural psychic gifts, he manages to keep himself alive and bedevil the breeders and their human surrogates. The powerful fuel of his humanity ultimately enables him to prevail.