The girl looked up from the computers and managed to give Robin a weak smile. "Nice to meet you," she spoke before turning a dial on one of the machines, causing a slow hum to emanate from the computer. "You don't need to worry, I'm not mad of him. I don't care if he doesn't remember me," the girl spoke softly before gazing over at the Doctor, who had now shuffled to a seat next to Gwen. "I'm not the one he let down," she muttered before returning to her work.<br/><br/>"Gwen, what happened to this place? Where has everyone gone?" The Doctor asked whilst Gwen steered the hulking van down the roads of London. "And why are the Autons, the Sontarans, the Rutans and the Cybermen all fighting here? Is this a turf war or something? Did one of them insult the other at a party?"<br/><br/>"You don't know?" Gwen asked, her voice sharp as she glanced at the Doctor. "You're here in London and you don't know whats happening?"<br/><br/>"Not a clue. I've got a couple of ideas, but I don't think any of them are right," the Doctor said softly, tilting his head to one side as he watched Gwen. "What happened here Gwen? Why are you and the girl in the back the only people that remain here? Did the aliens kill everyone else?"<br/><br/>"Ha!" Gwen laughed bitterly and shook her head. "They didn't have time to kill everyone Doctor, they're far too busy dealing with everyone else. We're nothing to them."<br/><br/>"What is that supposed to mean?" The Doctor asked. Gwen didn't reply, instead she nodded to the road ahead, his expression grim as the road opened to reveal Westminster bridge.<br/><br/>What they saw next was beyond anything they had seen so far. The world before their eyes was in chaos. An almighty battle was being fought on its surface, in the waters below and in the sky's above. Countless alien life forms battle savagely on the open ground, their weapons tearing into each other as they fought wildly for an unknown cause.<br/><br/>Scaly green humanoids were firing megaphone shaped weapons at bloated members of the Slitheen. Cybermen sent red blasts of laser flying across the water at the Sontarans that took cover on the other side. Large floating eyeballs in crystal halos fired shots of power at the Rutans that floated towards them. Hulking figures in black armor with heads that resembled those of a rhino fired at small groups of Daleks that floated down from the sky and showered them with blasts from their death rays. These were just some of the battles taking place in the chaotic scene.<br/><br/>"This is wrong," the Doctor breathed as he watched the scene unfold before him. "This is so wrong. Look at them, they're like animals. Sontarans, Rutans, Zygons, Atraxi, Sycorax, Judoon, Silurian, Slitheen, Autons...uncountable lifeforms all at each others throats. Since when did the biggest and baddest monsters in the universe decide they wanted to fight on earth?"<br/><br/>"Ever since the Advert started playing," Gwen spoke before pointing to a spot in the sky. On the horizon loomed a large black zeppelin balloon that slowly made its way through the chaos. On the side of it huge a huge plasma screen that seemed to be broadcasting an image of a pair of lips.