Sci-fi disaster thriller filmed in 3D for theatrical release. In the near future invisible alien invaders have seized control of the world's major cities, seemingly intent on sucking dry any source of electrical energy. In Moscow a handful of young survivors, including Luke (Emile Hirsch) and Holly (Olivia Thirlby), struggle to get to grips with this unseen enemy and soon find themselves locked in a desperate fight, not only for their own lives but for the future of humanity itself.