The Doctor's Daughter

"The Doctor's Daughter" is the sixth episode of the fourth series of British science fiction television series Doctor Who. It was broadcast on BBC One on 10 May 2008. Set on the planet Messaline, the episode features Georgia Moffett as Jenny, the cloned daughter of the series' protagonist, the alien time traveller the Tenth Doctor (David Tennant). The plot of the episode involves two factions of clones descended from a group of human and alien Hath pioneers, each of whom are seeking to wipe out the other side with a lost artefact called the Source, while the Doctor also comes to accept Jenny as his real daughter. Plot The TARDIS takes the Tenth Doctor, Martha and Donna to the planet Messaline. As they emerge from the TARDIS, they are met by human soldiers who force the Doctor to stick his hand into a progenation machine. The Doctor's daughter, whom Donna later names Jenny, emerges from the machine. They are soon confronted by the other occupants of the planet, the Hath. The Hath take Martha hostage. Jenny causes an explosion that traps Martha on the other side of the corridor. Martha tends to an injured Hath and earns their trust. The Doctor and Donna meet with General Cobb, who explains that, initially, the humans were meant to live with the Hath, but a dispute arose over something called "the Source", which Cobb believes has the power to end the war by wiping out the Hath. The Doctor inadvertently reveals the location of the Source to the humans and the Hath. The two sides prepare for battle.