Archos R-14. Nearly three years after this sophisticated artificial intelligence took over the world's computers and machines, ordinary people have waged an extraordinary guerrilla war and saved humankind from the brink of annihilation. But just moments after their triumph on the desolate ice fields of northern Alaska, a horrific new enemy emerges . . . in an unimaginable form. Fourteen-year-old Mathilda Perez attempts to save her brother's life while simultaneously trying to identify the new threat. In the heart of the Osage Nation in Oklahoma, fatigued survivors struggle to become warriors again. And on the shores of a devastated Tokyo, the elderly inventor Takeo Nomura and his love, Mikiko, make a stunning discovery in the ocean.