what did the doctor do in the time war
Time War (Doctor Who) The Time War, more specifically called the Last Great Time War,[2][3] is a conflict within the fictional universe of the British science fiction television series Doctor Who. The conflict pitted the Time Lords against the Daleks and culminated in the apparent mutual destruction of both races, caused by the Doctor.
Tenth Doctor The 2007 Christmas special sees the Doctor and a waitress, Astrid (Kylie Minogue), save the Earth from the impending crash of the starship Titanic; Astrid dies heroically, and the Doctor encounters Wilfred Mott (Bernard Cribbins) for the first time. In the 2008 series première episode, the Doctor is reunited with Donna Noble, Mott's granddaughter, who becomes his regular companion. In "Planet of the Ood", the alien Ood prophesy the Tenth Doctor's demise. Martha accompanies them for three episodes; in two, the Doctor battles the alien Sontarans, and last of which sees him become a father of sorts to Jenny (Georgia Moffett), in "The Doctor's Daughter". He meets archaeologist and future companion River Song (Alex Kingston) for the first time from his perspective in the two-parter "Silence in the Library"/"Forest of the Dead"; she dies, but he stores her consciousness to a hard drive to live on forever, after accepting that one day she will come to mean a lot to him. After Donna encounters Rose in a parallel world in "Turn Left", the Doctor realises that Rose's words to Donna — "Bad Wolf" — must herald the end of the world. In finale episodes "The Stolen Earth" and "Journey's End" (which cross over with spin-offs Torchwood and The Sarah Jane Adventures), the Doctor and Donna reunite with former companions Rose, Sarah Jane, Martha, Jack, and Mickey to save the universe from Davros (Julian Bleach), the creator of the Daleks. The Doctor was fatally wounded during the event, aborting in mid-regeneration to maintain his current self while transferring the residual energies in his previously severed hand. This resulted in a metacrisis that created a half-human Doctor who would live with Rose in the parallel universe while imbuing Donna with a Timelord's mind, forcing the Doctor to erase his companion's memories to save her life and leaving her with her family. A Doctor Who Prom mini-episode, "Music of the Spheres", features a lone Doctor composing his musical Ode to the Universe before being interrupted by the small alien Graske (Jimmy Vee).