Paradise Towers two elderly residents ("rezzies") live. Tilda and Tabby explain that all the able-bodied men left the Towers to fight a war, leaving behind only children and the elderly. The only other man still loose in the Towers is Pex, a would-be hero, who appoints himself Mel's guardian. At the Caretaker control centre, the Doctor meets the Chief Caretaker, who greets him as the Great Architect, designer of Paradise Towers, and then promptly calls for him to be killed The Doctor cites an imaginary rule from the Caretakers' manual, confusing them enough to make his escape. Mel and Pex meanwhile have
The Doctor (Doctor Who) According to the alien villain Chedaki in the episode "The Android Invasion," "his entire history is one of opposition to conquest." As a time traveller, the Doctor has been present at, or directly involved in, countless major historical events on the planet Earth and elsewhere – sometimes more than once. In the 2005 series premiere, "Rose", it is revealed that the Ninth Doctor was instrumental in preventing a family from boarding the "Titanic" prior to her fateful voyage. In "The End of the World", the Doctor recalls having been on board and surviving the "Titanic's" sinking to find himself "clinging