When the bomb on the beacon explodes, all power is restored. The Daleks order the humans to load the Parrinium onto their ship. On leaving Exxilon, the Daleks intend to fire a plague missile onto the planet, destroying all life and making future landings impossible, so that they will have the only source of Parrinium. Their true intention for hoarding Parrinium is to blackmail the galactic powers to accept their demands; refusal would mean the deaths of millions. As their ship takes off, Sarah reveals that the Daleks have only bags of sand while the real Parrinium is on the Earth ship, which is now ready to take off. Galloway has smuggled himself and his bomb aboard the Dalek ship; he detonates the bomb, destroying the Dalek ship before it fires the plague missile. Back on Exxilon, the City disintegrates and collapses, the Doctor sadly commenting that the Universe is now down to 699 Wonders.