Who is attacking a speeding bullet train on the edges of adistant galaxy? Why are seismologists going missing from 21stcentury Earth? Who is defacing some of history's most iconicpaintings? Why is a Dalek trying to make contact with theDoctor? And just what hold does the mesmeric Rasputin have overTsar Nicholas in 1916 Russia? In her last adventure, TheThirteenth Doctor must fight for her very existence, againsther deadliest enemies: the Daleks, the Cybermen and herarch-nemesis, the Master.
