From the publisher's webpage:
Mankind is under siege.
The enemies of Homo Sapiens are drawing closer. Day by day, they gain more followers, more territory, more power.
AMSUMO machine men stalk the ruins in preconditioned patterns. Sleepers, elite soldiers from the past awake to bathe civilization in warfare and bloodshed. Marauders, rotting, undying gods wield weapons of mass destruction and wreak havoc across the land.
But man has to face his greatest enemy yet:
Homo Degenesis, spawn of the Primer, rises from the craters, each breed wielding powers that bend the laws of reality.
Shapeshifting, precognition, psychokinesis, these aberrants are the peak of evolution. The insect swarms of the world come to do their bidding. Where Homo Degenesis claims territories, the earth rots and spore fields burst sepsis into the air, tolling the final bell in the Primers plan.
Humanity’s time has come:
Raise the weapons, fight back, or be forgotten. Forever.