To have a great thriller, you need a great protagonist. Meet the Hellhounds. They run in packs, have sharp, poisonous claws and teeth and kill out everyone in their path.
First came electromagnetic pulses that took out power, then came the terrifying monsters from beneath the surface to wipe out humans, then came their savior, another monster who gives humanity one chance.
To bad humans ruined it.
Enter the world of Hellhounds…