An apocalyptic alien invasion set humanity on the edge of extermination.
Six years later.
Using pre-industrial weapons of war, the surviving humans fought back...
In a desperate last stand by the world\'s greatest scientists, the cataclysm electromagnetic pulse wiped out technology on the planet, stranding the aliens on earth, locking them in the cage with the beasts of humanity that remained.
Unable to match technology with the invaders, humanity bet their existence on their physical strength.
An apocalyptic alien invasion set humanity on the edge of extermination