The Doctor, Amy and Rory are in New York when Rory suddenly disappears. His friends set out to find him, but a mysterious book that appears to be telling the events of that very day complicates matters. The Doctor throws away the final page of the book after seeing that the final chapter refers to Amy no longer being part of his life. Rory has been taken back in time by the Weeping Angels and encounters River Song, who is tracking a tycoon who wants to collect the monstrous statues. The Doctor and Amy arrive and find River, who reveals she is now a free woman as the ‘man’ she killed has wiped himself from history and thus never existed for her to kill. They save Rory from a cellar of baby Angels, but the foursome then find a room that contains a very old version of Rory. He dies in Amy’s arms. The Doctor realises that the Angels will soon send the young Rory back in time again and he will be forced to spend the next 40 years alone as their prisoner. Amy and Rory try to escape. As the Statue of Liberty comes to life and tries to zap Rory back in time, the pair realise the best way to save the day is to kill themselves and create a time paradox – if Rory is dead, then he cannot be sent back in time. The powerful paradox created by Rory not existing would destroy the Angels, and thus the whole day’s events would never have happened. It works, and the trio find themselves back where they were at the start of the episode. But an Angel suddenly appears and zaps Rory back in time. The Doctor tells Amy that going back in time to save him would create a paradox so huge it would destroy New York, so Amy decides to allow the Angel to send her back too and says an emotional farewell to the Doctor and River. The Doctor later discovers the last page of the book he was reading earlier – it says that Amy and Rory lived a long and happy life and that they would never forget him.
