Director: Colin Teague
Show Stars: John Barrowman (Captain Jack Harkness (Season 1, Episode 9 -13)), Freema Agyeman (Martha Jones (Season 3 - )), David Tennant (The 10th Doctor (Season 2 - ))
Guest Stars: John Simm (Mr Saxon) , Johnnie Lyne-Pirkis (Sphere Voice) , Gerard Logan (Sphere Voice) , Zoe Thorne (Sphere Voice) , Natasha Alexander (Woman) , Tom Golding (Lad) , Ellie Haddington (Professor Docherty) , Tom Ellis (Thomas Milligan) , Reggie Yates (Leo Jones) , Gugu Mbatha-Raw (Tish Jones) , Trevor Laird (Clive Jones) , Adjoa Andoh (Francine Jones) , Alexandra Moen (Lucy Saxon)
Production Code: NCFT093T
One year after the Master has taken control of the planet, Martha returns to England by boat and meets with Thomas, one of the underground fighters. She needs to meet with Professor Docherty, and uses the TARDIS key to conceal her self via the perception filter.
The Master takes the aged Doctor to the window of the Valiant and boasts of how he will use the Toclafane to recreate the world as the new Time Lord empire. The Master knows of Martha’ return and wants to know what the Doctor told her a year ago. He tells his staff to prepare for launch in 24 hours.
Elsewhere on the Valiant, Tish is sent to bring food for the imprisoned Jack, while Martha makes her way cross-country with Thomas. They find a manufacturing facility designed to build spaceships to launch a military assault across the universe.
Jack manages to pull himself free while the Jones family strike out and the Doctor manages to grab the Master’s laser screwdriver. The Master is unimpressed and it becomes clear that he was prepared, as his soldiers gun down Jack. The Master reveals his screwdriver has isomorphic controls and the Doctor can’t use them. He has the Jones family taken away.
Martha and Thomas get to Docherty just as the Master makes a speech to the world. He dismisses the rumors of Martha as some kind of savior, and shows the Doctor on-screen. The Master then stops the Doctor from regenerating and ages him another 900 years, reducing him to a dwarfed frail creature. Martha refuses to be intimidated, insisting that the Doctor is still alive and taking hope from it.
Docherty reveals that the Master’s telepathic signals are still keeping Earth from mounting a successful resistance against them. Martha believes that the key is the Toclafane, and that one was destroyed by lightning in South Africa. She gives the readings to Docherty, who determines she can recreate the conditions. Thomas goes out and lures in a Toclafane sphere, and Docherty and Martha capture it with an electrical trap and start to take it apart.
The Master and his wife Lucy go to see the Doctor, now kept in a cage, to boast of how their empire will begin the next day. The Master is still obsessed with the drum beat, which he has heard ever since he looked into the vortex and believes are the drums of war.
Docherty opens the sphere and finds that it contains a human head. The head is still alive and speaks to Martha Jones directly. It reveals that it has the memories of Creet, the child that Martha talked to before leaving for Utopia.
Aboard the Valiant, the Master has Lucy described the future of Utopia to the Doctor, from when the Master took her there. Martha realizes that the coordinates are locked between the year 100 trillion and the 21st century, so the Master went to Utopia. The survivors found nothing, cannibalized themselves, and gave themselves the mentality of children. The Master brought them back to the 21st century and used his Paradox Machine to avoid the fact of the Toclafane going back in time to kill their own ancestors. The Toclafane explain that they wish to help the Master build his new empire, just for the fun of it.
Martha explains to Docherty that the Doctor told her of a weapon that is capable of killing a Time Lord despite his regenerative abilities. Torchwood and UNIT created such a weapon but it needs four key chemicals and she only has three. The components were scattered across the world and Martha has spent the last year assembling them. The last component is in an old UNIT base in London so she and Thomas head out to get the last component. As Martha leaves, Docherty warns that she doesn’t look like a killer.
Martha and Thomas make their way through the streets of Bexley to another underground fighter who is sheltering refugees. They are unaware that Docherty is secretly contacting the Master and bargaining her knowledge for the life of her son. Meanwhile, Martha speaks to the refugees and inspires them with tales of her travel and how she is no legend, but the Doctor is the one everyone should think of. The Master himself sets foot on Earth and arrives with his human and Toclafane security forces. He calls out to Martha to surrender and she steps out, removing the TARDIS key. He forces Martha to turn over the weapon so he can destroy it. He prepares to kill Martha but Thomas charges out and the Master kills him. He then decides to take Martha to the Doctor so his rival can see his companion killed before him.
Aboard the Valiant, the Master takes the vortex manipulator from Martha and then prepares to order the launch of his fleet. The Doctor, Martha, Jack, and the Jones family are forced to look on but Martha starts laughing. She reveals the gun was a fiction that she and the Doctor set up, and they knew about Docherty’s son and how the professor would give her away. As the countdown hits 1 minute to launch, Martha explains of how she traveled the world to spread the story of the Doctor and to think of one word, one thought, at one specific time. The Archangel network’s telepathic field would pick up the one though, and the Doctor has spent the last year tuning into the telepathic field. The Doctor absorbs the telepathic energy and reverses the aging process. The Master opens fire on him but his laser blasts are useless. When he tries to kill Jack and the others, the Doctor telekinetically takes away his laser screwdriver. The Doctor advances on him… and says “I forgive you.”
The Toclafane realize something is amiss, while the Master uses the vortex manipulator to teleport himself and Doctor to one of the shipbuilding yards. The Master reveals he has a black hole converter and will use it to trigger the self-destruct of every ship on the world. Jack and the soldiers go to the TARDIS to destroy the Paradox Machine, fighting past the Toclafane.. The Doctor points out the Master wouldn’t kill himself even if he could take Earth along and the Master turns over his remote. Jack gets inside the TARDIS and destroys the Paradox Machine, and Earth is shaken by the realignment of timelines. The Doctor teleports the Master back to the Valiant and time reverses itself a year. Other then those aboard the Valiant at the moment of realignment, no one will remember the Master’s conquest of Earth. They handcuff the Master but the Doctor insists that the Master is his responsibility and will imprison him in the TARDIS. However, Lucy Saxon guns the Master down. The Doctor holds him but the Master refuses to regenerate so as to avoid a prisoner’s eternal fate, and declares that he’s won. Then he wonders if the drumming will finally stop… and dies. The Doctor cremates his oldest rival’s body and leaves… unaware of a feminine hand that sort through the ashes and takes the Master’s ring.
The Doctor, Martha, and Jack go to Cardiff and Jack takes off, refusing to go with the Doctor. He’s concerned about his Torchwood team and plans to find them, although the Doctor relieves him of his vortex manipulator. The Doctor warns that Jack will live forever, and as Jack leaves he mentions that he was once nicknamed “The Face of Boe,” leaving the Doctor and Martha to wonder…
The Doctor has completed repairs on the TARDIS and has his severed hand safely on-board. He waits outside the Jones house as the family is reunited, then Martha comes into the TARDIS… to tell the Doctor she is staying behind. She plans to earn her doctorate and look after her family. She gives the Doctor her phone in case he needs to contact her, and admits that when someone feels unrequited love, it’s time to walk away. She leaves once more and the TARDIS sets the controls… as the prow of the Titanic crashes through the wall.