The end of the world is coming, terror covers the whole world,
and the earth becomes a hunting ground for zombies and mutants.
Zhao Tianlei accidentally obtained a mysterious super system.
Although he is not a saint, but seeing the tragic situation in the world and the death of his classmates,
how can he stand by and look at how Zhao Tianlei,
who has a super upgrade and exchange system,
leads humans Fight against corpses, restore human civilization?