Alternate timelines ( Four Doctors ) Three alternate timeline s came into being after the Tenth , Eleventh and Twelfth Doctor s all touched a continuity bomb . Each then saw three possible versions of reality created by each of them making a single change in their lives . ( COMIC : " Four Doctors " ) History . Time Lord victorious . For the Tenth Doctor , a reality was created where he never saved Wilfred Mott from radiation poisoning by sacrificing himself . ( TV : " The End of Time " ) Instead , he went on to conquer the universe and rule over it as the " Time Lord Victorious " , succumbing to his dark side entirely . Having " fixed a broken cosmos " during his rule , he was killed by a Raxacoricofallapatorian , the result of which prevented his regeneration into the Eleventh Doctor . The original Tenth Doctor was distraught at learning his alternate self left Wilfred to die despite the Eleventh Doctor trying to comfort him . ( COMIC : " Four Doctors " ) All of history at once . For the Eleventh Doctor , a timeline was envisioned where , instead of him and River Song touching to end the history where all of reality happened at once because they altered a fixed point in time , ( TV : " The Wedding of River Song " ) they instead lived peacefully as a married couple . As the original Eleventh Doctor noted , this reality was dying because of such , appalled his alternate self would let the Earth suffer just so he could be happy . ( COMIC : " Four Doctors " ) Allying with the Voord . In the Twelfth Doctor ' s case , his alternate self no longer travelled with Clara Oswald , having told her to " go to hell " . ( TV : " Dark Water " ) Instead , the Twelfth Doctor travelled alone in his aging TARDIS . Given it seemed the safest version of history , the three Doctors agreed to enter the alternate Twelfth Doctor ' s timeline . Upon doing so , the Twelfth Doctor took them to meet the Voord , revealing he had allied himself with them to conquer the universe . Despite the three Doctors ' efforts , the Twelfth Doctor succeeded in defeating them , sending his original self back in time , rewriting their memories , to ensure his reality would come to be . ( COMIC : " Four Doctors " ) Negation . In a last attempt to stop the alternate Twelfth Doctor , Gabby Gonzalez was transported by a Weeping Angel to the point she met Clara Oswald . Informing her the picture she saw was a lie created by the alternate Twelfth Doctor before vanishing , Clara informed the three Doctors of such . As the picture still existed , the Twelfth Doctor realised that he would still become his alternate self and they had to stop him together . This time , they entered the alternate Eleventh Doctor ' s timeline and used the weapon on the crashed Dalek saucer to enter the alternate Twelfth Doctor ' s timeline as a surprise . Inside the alternate Twelfth Doctor ' s timeline , the Twelfth Doctor posed as his alternate self , gaining access to the Voord group mind . By doing so , he temporarily stopped them from intervening as the Tenth Doctor and Eleventh Doctor disabled the Voord city ' s force field and linked the dimensional controls of the city to the Dalek weapon that brought them there . The alternate Twelfth Doctor discovered his younger self and attempted to destroy him only for the others to intervene . The Twelfth Doctor left his alternate self with a choice : die along with the Voord when acid flooded the city in an hour or regress the Voord along their timestream and cease to exist . After Clara apologised and reminded him of who he really was , the remorseful alternate Twelfth Doctor complied and regressed the Voord , erasing himself from existence . In the aftermath , Clara discovered that the picture was now blank , proving that they had in fact succeeded . ( COMIC : " Four Doctors " ) In order to ensure things went as they did , the Eleventh Doctor planted the Weeping Angel in the comics package with the help of Alice Obiefune . ( COMIC : " The Doctor Shops for Angels " )