All that weapons tech in the hands of an hysterical four-year-old... looking for his mummy.The Doctor


The Child's plague is spreading throughout wartime London, and its zombie army is on the march. The Doctor and Rose form an alliance with intergalactic con man Captain Jack, but find themselves trapped in the abandoned hospital. The answer lies at the crash site, but time is running out...


The gas-masked virus carriers each call out "Mummy?" while they back the Doctor, Rose and Jack up into a corner; meanwhile, in a house in another part of London, the Child himself is cornering Nancy. At the last moment, the Doctor forcefully steps forward and commands the zombies in a stern, parental voice, to go to their room. The zombies pause, uncertain, and simultaneously, so does the Child. The Doctor repeats his order, saying that he is very cross with them, and slowly, the zombies turn and return to their beds, and the Child turns away from Nancy, leaving the house and wandering away. The Doctor relaxes, glad that his ruse worked — it would have been a terrible set of last words.

Jack explains how his con was supposed to work: he would find some space junk, throw it through time, convince a Time Agent that it was worth something and get fifty percent of the payment before a German bomb would land and erase all evidence of the swindle before the buyer could claim it. He says the London Blitz is particularly good for this, as bombs fall all the time, and recommends Pompeii as another suitable location that can double as a "vacation". The Doctor does not approve, and points to the dormant zombies around the room as the consequences of what Jack did. Jack protests that the crashed ship was an empty, burnt-out medical transport and so could not have anything to do with this. As the Doctor heads for the door and upstairs, they hear the all-clear siren sounding.

Nancy hears the all-clear as well, but before she can leave the house, she is caught by the family that lives there, who grab and force her back inside until the authorities can deal with her. However, when alone with Mr Lloyd, Nancy adroitly points out that there was much more food on the table than should have been in a time of rationing. She says that half the street believes that Mrs Lloyd is "messing about" with the butcher, but she knows that it is actually Mr Lloyd who is doing so, leaving the implied threat of blackmail hanging. She demands wire cutters, a torch and food before she is allowed to leave.

Back at the hospital, the three time travellers reach Room 802, where the Child, the first victim of the "bomb", was taken. The Doctor gets Jack to use his sonic blaster, identifying the weapon as coming from the 51st century. The blaster digitises the lock, leaving a clean square hole where it used to be, and they enter. The room is in disarray, the glass separating the observation booth from the rest of the room smashed. The Doctor prompts Jack, who notes that whatever did this was powerful and angry. On the floor are toys, and on the walls are child's drawings in crayon. The Doctor turns on the tape recorder in the booth, and the voice of Dr Constantine issues from the speakers. Constantine had been questioning the Child, but all the Child kept asking was if he was his "mummy".

As the tape continues to play, the Doctor walks around the room, thinking out loud. The homeless children he encountered earlier were living around the bombsite. Suppose one of them wandered near the crashed ship and was somehow altered. The Child is incredibly powerful, and he will soon realise that. The tape has stopped playing, but the cries of "mummy" continue to play. Rose is confused by this, but the Doctor suddenly realises his big mistake; he had sent the child to his room, and this is his room. The trio turn around and see the Child standing there, asking his eternal question.

The Doctor uses Jack's blaster to digitise a wall of the room and they run out into the corridor. Jack reverses the settings and reintegrates the wall, sealing the Child in. However, their respite is short-lived as the Child begins to batter his way through the wall and the zombies start approaching them from both sides. The Child is not just controlling them — he is every living thing it has infected. Rose pulls Jack's blaster down to disintegrate the floor just as the zombies close in and they fall down to the ward below. The zombies in that ward wake up as well, and the trio run for a door, sealing it shut behind them with the Doctor's sonic screwdriver. Unfortunately, it is a storeroom, and a dead end. As the Doctor looks for a way out, Jack vanishes.

Nancy reaches her makeshift living space at the abandoned rail yard, and finds the other children there. She chides them, saying that they should have looked for somewhere else to stay, but they say they are safe with her. Nancy disclaims this, saying that it is not that the Child keeps coming after them; the Child keeps coming after her. As if to prove her point, a typewriter in the hovel starts typing on its own, tapping out the Child's question. Nancy leaves, heading for the bombsite.

In the storeroom, Jack's voice comes over a disconnected radio. He had used his ship's teleporter, but could not take the others along because it was keyed to his molecular structure. He is trying to override the navigational computer's security, but it will take some time. Jack is able to communicate over the disconnected radio because of his ship's Om-Com technology — an ability the Child also has. The Child's voice comes over the radio, tauntingly saying that he is going to find them, and Jack jams the signal by playing Glenn Miller's "Moonlight Serenade", the same music he and Rose danced to on his spaceship.

As the Doctor works on breaking through the concrete by setting up a resonance pattern with the sonic screwdriver, he asks Rose why she seems to trust Jack. Rose says Jack reminds her of the Doctor, except with "dating and dancing." The Doctor is mildly offended that Rose assumes he cannot dance, and Rose, amused, asks him to prove it. As they start to dance, however, they are teleported up to Jack's ship. There, the nanogenes heal the Doctor's hand that he burnt on the TARDIS console when it sparked during the pursuit of the cylinder. The Doctor identifies Jack's "borrowed" ship as being of Chula design like the crashed ship. Jack works on getting the nav-com back online, and in answer to Rose's questions, he explains that his confidence trickster activities are not wholly mercenary. He had left the Time Agents when he discovered that they had stolen two years of his memory. Jack observes that the Doctor does not trust him, and he may be right not to.

Meanwhile, Nancy has reached the crash site, and uses the wire cutters to get past the barbed wire. However, as she reaches the tarpaulin-covered ship, she is discovered by the soldiers guarding the site and placed under arrest. She is brought to a hut where Jenkins, a sick soldier bearing the lighting scar mark of the Child's plague, is resting. Despite pleading with the commanding officer (the same Army officer Jack was talking to the previous episode) not to leave her there, he handcuffs her to the table. Once left alone, Nancy can do nothing but watch helplessly as Jenkins painfully transforms into another gas-masked zombie.

The Doctor, Jack and Rose reach the crash site as well. Rose offers to distract the guards' commander, but Jack points out that he knows Algy, and Rose is not his type. Jack goes ahead instead, leaving Rose slightly shocked. The Doctor points out that in the 51st century, people are more flexible in who they "dance" with. However, when Jack tries to talk to Algy, the British officer transforms into a zombie and collapses. The Doctor hears singing from a nearby hut and finds Nancy, who is keeping the zombie Jenkins asleep with a lullaby. The Doctor frees her from her bonds and they all head to the Chula transport.

As Jack tries to open the coded lock on the transport, he sets off an alarm which awakens the zombies in Albion Hospital, who then start to move toward the site. The Doctor orders Jack to secure the gates and tells Rose and Nancy to reconnect the barbed wire with the sonic screwdriver. Nancy asks Rose who they are, and Rose tells her that they are from the future. When Nancy is sceptical that there will even be a future, given all the carnage of war around them, Rose confidentially tells her that the British will win the war.

Jack manages to open the transport and reveals that it is empty. However, the Doctor asks Rose what they should expect in a Chula medical transport, and Rose hits on the right answer: nanogenes. The ship was full of them, and when it crashed, billions and billions of nanogenes escaped, programmed to heal everything they came across. However, the first thing the nanogenes found was a dead child wearing a gas mask, and never having seen a "normal" living human before, they used that as their only pattern. They then started to transform everything they encountered to fit that baseline. The nanogenes have given unimaginable power to a little boy searching for his mother, one who is both willing and able to tear apart the world to do it.

Cries of "mummy" fill the air as the zombie army, led by the Child, approach the site. When Jack triggered the alarm, the ship thought it was under attack and so summoned the zombies as troops to protect it. The transport was a battlefield medical unit, built to heal Chula warriors and send them back to the front lines; that was why the Child was so strong and could transmit his voice using the same technology as Jack's ship. Nancy begins to cry, saying that it is all her fault. The Doctor starts to comfort her, but then realises that the Child — Jamie — is not her brother, but her son, whose maternity she kept a secret even from him.

Jack notes the bomb is seconds away from dropping, but the nav-com is back on-line and the teleporter is only working for him again. The Doctor tells him to do what he has to, and Jack teleports away, making Rose think he has abandoned them. The Doctor asks Nancy to tell Jamie the answer to the question he has been asking all along. Jamie steps up to Nancy, asking once again whether she is his mummy. Nancy answers yes, she is, and she will always be. They embrace, and the nanogenes swell up around them in a cloud of glowing particles. To the Doctor's delight, the nanogenes scan Nancy and Jamie, matching their DNA. Because she is Jamie's mother, Nancy's genetic code provides them the information they lacked with Jamie. The nanogenes recognise Nancy's living form as the correct pattern and, using this as their new baseline, restore Jamie back to full health. With a laugh of joy, the Doctor unmasks the restored Jamie and lifts him in his arms.

Rose suddenly remembers the bomb, but the Doctor says it has been taken care of. As it streaks down towards them, so does Jack's ship, capturing the bomb in its tractor beam. The Doctor had judged Jack's psychology right and the former Time Agent has returned for the rescue. Jack is riding the bomb itself in the beam, and tells the Doctor that the bomb has commenced detonation. Jack is keeping it in stasis, but it will not last. The Doctor asks him to get rid of it as safely as he can. Jack tells Rose good-bye, and teleports with the bomb back to his ship, which flies away. The Doctor waves his fingers, summoning the nanogenes around them and applying a patch to their programming. He hurls the nanogenes towards the zombies, crying out triumphantly, "Everybody lives, Rose! Just this once — everybody lives!"

The former zombies rise; all of them restored to their normal selves and with their ailments cured by the nanogenes, even to the extent of Mrs Harcourt regrowing her missing leg. The Doctor leaves Dr Constantine to tend to his patients, bidding them farewell with an exhortation to beat the Germans, save the world, and not forget the welfare state. He sets the Chula transport to self-destruct once they leave, to fulfil history's requirement of an explosion. As Rose and the Doctor enter the TARDIS, the Doctor is almost insufferably pleased with himself — the reprogrammed nanogenes will fix all the earlier damage they did before they deactivate and Nancy and Jamie will get the help they need from Dr Constantine. Rose then asks about Jack and the unexploded bomb, and his smile fades.

In space, Jack discovers that there is no way to eject the bomb or even himself, and his situation seems hopeless. With an air of resignation, he orders "emergency protocol 417", a large martini (with too much vermouth) and begins to drink as the strains of Glenn Miller start to play… from the open doors of the TARDIS appearing at the back of his ship. He enters the console room and the Doctor, with a "your ships about to explode, theres going to be a draft.',tells him to shut the doors, welcoming him to his ship. The Doctor switches the music to "In the Mood" and starts to dance with Rose, who points out that Jack may want that dance. The Doctor agrees, but mischievously asks, "But who with?" As Jack watches, smiling, the Doctor and Rose dance around the console.



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  • Jack's sonic blaster is from the weapons factories of Villengard, there's a banana grove there now (whenever now is).
  • Setting 2428-D of the sonic screwdriver sets it to re-attach barbed wire.
  • The Doctor's line; "Everybody lives, Rose, just this once everybody lives!" could be a reference to the fact that usally at least one person dies whenever he is involved in an adventure. This theme would be echoed in Forest of the Dead.
  • When Rose says to Jack, " When I met him he blew up my job, that's practically how he communicates", she is echoing the episode Rose when the Doctor told her to run for her life and then blows up her job.

Story Notes


7.9 Million viewers


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Location Filming

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Discontinuity, Plot Holes, Errors

  • If the nanogenes are sub-atomic, how do they affect big things like genes (sub-atomic particles are smaller than atoms)? (This is not an error. Science and technology are full of small items affecting larger ones e.g. neutrons are sub-atomic particles which cause Uranium atoms to undergo fission, DNA defines the morphology of entire organisms, etc. Or maybe the nanogenes are bigger on the inside!)
  • The TARDIS lands on Jack's ship without him hearing it land (or without it making a noise). (There is no direct mention that the TARDIS physically landed on Jack's ship. The TARDIS possibly opened an indirect portal-like opening between Jack's ship and the TARDIS. Also, the fact that the characters barely stood upright in Jack's ship would mean that the TARDIS would not fit easily into Jack's ship in the first place.)
  • The phrase "Schlechter Wolf" on the bomb is a direct translation of Bad Wolf, but a German would say "Böser Wolf". (The person who put that there may be able to see the whole of time and space, but that doesn't make them a linguist.)
  • If Jack's Vortex Manipulator is working well enough to transport him from a space station in the year 200,100 to Earth in 1869, why doesn't he just use it to time-jump off of his exploding Chula warship? It is possible that Jack fixed his Vortex manipulator while on The Game Station. (But if his Manipulator was broken, how was he ever expecting to get home in the first place? Jack had a spaceship that he was obviously familiar with, so it's not too farfetched that he'd have the tools to fix it there, or the means to get any necessary parts to fix it)
  • If the nanogenes are so advanced (and, indeed, so small), why could they not have scanned Jamie's genetic structure and ascertained what a human should look like? Jamie was dead and the Doctor reasons that he was probably killed earlier that day so there wasn't much left of him to scan. although they seem to recognise that humans need to breathe as some scenes where you can see what the gas-mask child sees clearly shows that he still breathes.
  • The Doctor is delighted that "everybody lives". However, there would have been massive fatalities during a Blitz night. The Doctor may be referring to people whose deaths he would have been responsible for. This is also the irony of the line. It means that even when no-one died as a direct result of the extra-terrestrial activity, there was still massive death tolls appearing all the time. Also it is possible that after restoring the gas mask people to proper human status the nanogenes departed throughout London, healing or reviving those that had died in the bombing that night.
  • In some scenes at the railway station, the logo of the UK's main railway company British Railways can be seen on rolling stock, a company which wasn't formed until 1948.
  • Where did the nanogenes go after that? Did they stay roaming earth? The Doctor tells rose he ordered the Nanogenes to shut down after everyone was cured


  • The term "dancing" as used in this episode has been acknowledged as a metaphor for the Doctor making love. Writer Steven Moffat would use the metaphor again in The Girl in the Fireplace, in which it is hinted that the Doctor might have some form of romantic dalliance with Madame de Pompadour (whether sexual or not is never indicated, though possible given the nature of Madame de Pompadour as a courtesan). Non-televised stories in which sexual activity on the part of the Doctor has been hinted at has included The Adventuress of Henrietta Street, plus (implied) Cold Fusion, The Infinity Doctors, The Dying Days.
  • Taken in its more innocent context, this episode features one of the few scenes in which the Doctor is actually shown dancing (not counting him "grooving to the music" in End of the World). The Seventh Doctor danced with Ray in Delta and the Bannermen.
  • According to Steven Moffat (in Doctor Who Confidential: "River Runs Deep"), the gun used by Jack to blast open the door (called a squareness gun) is destined to be kept in the TARDIS and someday obtained by River Song who will use it to save herself and the Doctor in Forest of the Dead.Although, River and Jack do apparently come from about the same time period, so it would be perfectly conceivable that she could have obtained the same type of weapon without the connection of the Doctor.
  • The Tenth Doctor, during the The Sontaran Strategem, asked "Are you my mummy?" while wearing a Gas Mask.

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Series 1 Volume 3 DVD Cover

See Also

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