The end of the world is coming, terror is shrouding the whole world, and the earth has become a hunting ground for zombies and mutants. Zhao Tianlei (the male protagonist) accidentally obtained a mysterious super system. Although he is not a saint, how can he stand idly by when he sees the tragic situation in the world and his classmates dying one by one? Let's see how Zhao Tianlei, who has a super upgrade and exchange system, leads humans to fight against the zombies and restore human civilization.