Hundreds of massive intergalactic robots appear in all of the world's major capitals with an ultimatum: Prove the value of human civilization or be destroyed.Hundreds of massive intergalactic robots appear in all of the world's major capitals with an ultimatum: Prove the value of human civilization or be destroyed.Hundreds of massive intergalactic robots appear in all of the world's major capitals with an ultimatum: Prove the value of human civilization or be destroyed.