<P> Missy teleports to join them and gives the Doctor control of the Cyberarmy, as a birthday present . She explains that he can lead his own personal Cyberman army as a conquering force to save the universe from tyranny, such as that of the Daleks, as he has always wanted . The Doctor protests that no one should have such power . Missy taunts that he does not trust himself, and she wants to prove to him that they are fundamentally the same . The Doctor ultimately rejects the gift, accepting that he is not a "good man", and passes the control bracelet to Danny, who is revealed to have kept hold of his personality through his love for Clara . Danny leads the Cyberarmy into the sky, where he and they explode, incinerating all the Cyberpollen clouds across the world, thus stopping the second rainfall and saving humankind . </P> <P> Although disappointed that her plan has been ruined, Missy suggests that she and the Doctor can still become friends again and return to Gallifrey, which she claims has now returned to its original location . Furious over what has happened, Clara instead prepares to kill Missy with her own weapon . The Doctor, however, insists on committing the deed himself to keep Clara's hands clean . He acknowledges to Missy that she wins . But, before he can fire, a solitary Cyberman vaporises Missy and gestures towards an unconscious, but still living, Kate Lethbridge - Stewart . The Doctor realises that this Cyberman is her father, the late Brigadier Lethbridge - Stewart, also with his humanity intact . The Doctor salutes his old friend (something Kate remarked earlier that her father always wanted from the Doctor), and Lethbridge - Stewart fires his leg jets and flies away . </P> <P> Two weeks later, Danny contacts Clara from the Nethersphere as it begins to shut down . Explaining that there is only enough power in Missy's control bracelet to bring one person back to life, Danny uses it to resurrect the boy he had accidentally killed while serving in the army . He asks Clara to return the boy to his parents . In the interim, the Doctor travels to the spatial coordinates given by Missy, only to find nothing there; Gallifrey remains lost . Some time later, Clara meets with the Doctor to tell him about Danny's fate . Assuming Danny is alive again, the Doctor interrupts her with the news that he found Gallifrey and plans to return home, wanting to spare Clara's feelings . Clara, in turn, says that she and Danny are going to settle down and resume their relationship . They bid each other goodbye . </P> <P> As the first full episode since The End of Time to feature the Master with her true identity revealed, "Death in Heaven" features various references to previous episodes featuring the Master . Osgood refers to previous incidents on Earth featuring the Master, including his tenure as Prime Minister in "The Sound of Drums". When boarding the airbase, the Doctor believes that he is going to the Valiant, an airborne aircraft carrier partially designed by the Master in "The Sound of Drums". Missy uses the phrase "Oh, my giddy aunt", an expression associated with the Second Doctor . </P>

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