The Three Doctors (Doctor Who) the Third Doctor (Jon Pertwee) for help when Omega drains their civilisation's power. The serial opened the tenth anniversary year of the series, and features the first three Doctors all appearing in the same serial. This makes it the first "Doctor Who" story in which an earlier incarnation of the Doctor returns to the show. A superluminal signal is sent to Earth, carrying with it an energy blob that seems intent on capturing the Doctor. The homeworld of the Time Lords is also under siege, their power being drained through a black hole. Trapped themselves, and desperate to send help,
Doctor Who (series 2) Doctor Who (series 2) The second series of British science fiction programme "Doctor Who" began on 25 December 2005 with the Christmas special "The Christmas Invasion". Following the special, a regular series of thirteen episodes was broadcast, starting with "New Earth" on 15 April 2006. In addition, two short special episodes were produced; and an interactive episode, as well as 13 "TARDISODEs". This is the first series to feature David Tennant as the tenth incarnation of the Doctor, an alien Time Lord who travels through time and space in his TARDIS, which appears to be a British police box on