The Doctor once again finds himself in the middle of a... situation. Mind you, situations for him never involved getting turned into a talking horse. Well, pretend you have a plan and just go for your trusty Sonic I suppose. ONCE A TIME LORD REWRITE
A lone wanderer in the final days of Man. An impregnable fortress work-camp to stand against the total emigration of humanity to virtual Equestria. The artificial intelligence called 'Celestia'. Everything has been accounted for. Everything.