Xoanon Defeated | The Face of Evil | Doctor Who

Xoanon brainwashes the Savateem to thwart their efforts to defeat him - will the Doctor be able to overcome the rogue supercomputer? Subscribe to Doctor Who for more exclusive videos: WATCH MORE: The Fourth Doctor: The Fourth Doctor Titles: The Collection Trailers: MORE ABOUT DOCTOR WHO: Welcome to the Doctor Who Channel! Travel in the TARDIS with clips dating back to