The Sontaran Stratagem was the fourth episode of the fourth series of Doctor Who. It was the first appearance of the Sontarans in the revived series and saw the reappearance of Martha Jones as a guest companion.

Contents 1 Synopsis 2 Plot 3 Cast 4 Production crew 5 References 5.1 Technology 5.2 Individuals 5.3 Locations 5.4 Planets 5.5 Species 5.6 Time wars 5.7 Timeline 5.8 United Nations Intelligence Taskforce 6 Story notes 6.1 Ratings 6.2 Filming locations 6.2.1 Studio 6.2.2 Location 6.3 Production errors 7 Continuity 8 Home video releases 9 External links

Synopsis Edit

When fifty-two people across the world in eleven different time zones die at the same time with ATMOS in their vehicles, Martha Jones, now a U.N.I.T. doctor, summons the Doctor back to modern-day Earth to help figure out why, but an old enemy lies in wait.

Plot Edit

Luke Rattigan and his students toss out reporter Jo Nakashima and her notes. She protests, saying that she's investigating ATMOS, Rattigan's invention. It is dangerous. An uninterested Rattigan lets her leave. However, he goes inside and contacts his mysterious employer, recommending termination of Jo. His employer reminds him they don't take orders from him, but Rattigan reminds him that he said, "recommend", and the employer agrees to terminate Jo.

Some time later, Jo is in her car (fitted with ATMOS). She leaves a message for Colonel Mace of UNIT, asking him to check out several recent deaths that have happened in ATMOS-equipped cars and to pinpoint the times. At the same time, she follows her ATMOS's instructions. After crossing a bridge, the car turns right and stops at the bank of a river. Jo is confused, as she told ATMOS to take her to UNIT Headquarters. She's about to find her own way when the car doors lock themselves and the transmission of the car locks itself in the drive position. The car accelerates towards the bank. Jo screams as the car goes flying, landing in the river, where it sinks.

Meanwhile, Donna is flying the TARDIS with mixed results while the Tenth Doctor watches closely (warning her not to put a dent in the 1980s). He gets a call on his mobile phone, from former companion Martha Jones.

Martha waits in an alley when the TARDIS materialises. The Doctor introduces Martha and Donna and catches up on where Martha has been since she left the TARDIS. She is now engaged to Tom Milligan and, thanks to the Doctor's recommendation, has a job with UNIT as a medical officer. She speaks into a walkie-talkie and gives the all-clear to execute "Operation Blue Sky." Elsewhere, UNIT forces raid an ATMOS factory and capture the workers. What no one knows is that Luke Rattigan's employer is watching the raid on a television monitor and is not very impressed.

Martha leads the Doctor and Donna into a lorry containing a mobile UNIT headquarters. She introduces the Doctor to Colonel Mace, who knows about the Time Lord from UNIT files. The Doctor isn't impressed either with the overly military "new" UNIT or their handling of civilian workers in the ATMOS factory. Donna compares it to how the United States treats detainees at Guantanamo Bay.

Martha and Mace explain why they've executed the raid: just the day before, fifty-two people were simultaneously poisoned to death in their cars across the world. Martha has checked the biopsies and found the unknown toxin had left each of their bodies immediately. The cars in question are of different makes and models but are all fitted with ATMOS. UNIT suspects that the technology is alien in origin.

Meanwhile, two UNIT solders, Privates Harris and Gray, are exploring in the lower corridors of the ATMOS Factory. Wandering into another corridor, they find two ATMOS workers guarding a door. Rattigan's employer remotely orders the two workers to let the soldiers in. Hypnotically, one opens the door. They enter a room with mysterious lighting and a tank with something banging underneath. They figure it must be a cloning tank and someone is growing a body. Gray tries to call for backup, but a squat armoured person appears in the room and praises their skills of deduction. He tells Gray that he smells of sweat and fear. After Harris calls him "Humpty Dumpty", the figure uses a staff to disable Harris's legs. Gray prepares to fire, but his gun jams. The figure reveals that the room is contained within a cordolane signal (exciting the copper surface of the bullet and causing expansion in the barrel, rendering their guns useless, as well as blocking their radio signals). When asked for a name, the figure identifies himself as General Staal of the Tenth Sontaran Battlefleet, known as "Staal the Undefeated." He takes off his helmet to reveal his face.

The Doctor examines the ATMOS equipment and concludes it is advanced but not alien technology. He notes that he didn't expect Martha to work for the military but she points out that he left her and she is working with UNIT on her own terms. Donna has been using her own skills to go over the personnel records. She returns with the Sick Days file, which is empty. There have been no sick employees at the factory in months if ever. The Doctor wants to go see Luke Rattigan, the creator of the ATMOS system. Mace assigns him a private, Ross Jenkins. Meanwhile, Donna and Martha chat and Martha notes that her family suffered because Martha didn't tell them about her involvement with the Doctor.

In the basement, Staal finishes hypnotic programming on Gray and Harris, assigns them tasks and returns to the Sontarans' ship via a teleport pod. The Doctor prepares to go the Rattigan Academy and Donna says that she's going home. The Doctor thinks she means she is leaving for good. He babbles on about how he'll miss her until he figures out she's just going home to talk to her mother and granddad. Meanwhile, Martha talks to a factory worker, Trepor, who seems to have come from Poland just to work. She finds him little more than an automaton with a rapid heartbeat. She goes to find Mace. Gray and Harris offer to escort her to the Colonel. They take her to the basement and lock her in the cloning chamber.

Donna returns home and explains to Wilfred where she's been. He takes it well, but warns her not to tell her mother, Sylvia. When Sylvia comes in and demands to know where Donna has been, Donna says she's been travelling. The Doctor and Jenkins travel to the Rattigan Academy, and the Doctor notes that even UNIT jeeps have ATMOS. Jenkins says that until the system has been proven dangerous, the government refuses to remove ATMOS. They arrive at the Academy and meet Luke. The Doctor checks out the science labs and goes to Luke's reception area, which contains a large piece of tunnel-like sculpture. The Doctor notes that Luke couldn't have created the equipment in the science labs. He triggers a control on the piece of "art," revealing it's a teleport pod.

He arrives on the Sontaran spaceship. As they notice him, he teleports back. General Staal makes it through before the Doctor can sabotage the pod. He removes his helmet. The Doctor, realising who he's up against, taunts Staal about his honour and bounces a ball off of the wall behind Staal. It hits his probic vent, the Sontarans' one weakness. Staal, stunned, collapses. The Doctor and Jenkins make their escape. Staal recovers and fixes the teleporter, then returns to his ship with Luke. He has his second-in-command Commander Skorr, "the Bloodbringer," begin the invasion.

Skorr teleports to the factory and confronts a captured Martha, saying they need something more sophisticated than hypnotic programming to use her abilities. He renders her unconscious and begins transferring her memories into a clone.

Staal realises that he is dealing with the Doctor, the last Time Lord. He tracks the Doctor through the ATMOS device in the jeep and drives it into the river. The Doctor overrides the device by commanding it to do what it's doing anyway so it will disregard his orders and do the opposite. It stops just short of the river and the Doctor and Jenkins jump out as the ATMOS device burns out. With ATMOS destroyed, Staal assumes that the Doctor is dead and confirms with Skorr that the Martha clone is ready. Luke assures him that the initial test run resulting in the fifty-two dead car drivers was successful and they are ready to unleash ATMOS on a wider scale.

The Doctor goes to pick up Donna while Jenkins finds a vehicle without ATMOS so they can get back to UNIT. Wilfred and Sylvia both recognise the Doctor from their previous Christmas encounters with him. The Doctor calls UNIT and talks to Martha. She promises to pass on his warning about the Sontarans but tells Moss that everything is fine. The Doctor then examines the ATMOS in Donna's car and triggers a hidden device exposing gas nozzles. The Sontarans detect the activation and Staal realises the Doctor is still alive. He orders the invasion to begin and the Sontaran ships close in.

The Doctor realises the gas is poisonous and there are over four hundred million cars on Earth with ATMOS. Wilfred tries to move his car. Just then, Staal orders the converters activated and every one deadlocked. As Wilfred gets in his car, the doors lock themselves and the car starts. As the ATMOS device begins to emit a poisonous gas, the Doctor tries to disable the ATMOS to get Wilfred out. ATMOS vehicles activate everywhere. At UNIT, soldiers try to destroy their ATMOSes by shooting them. Mace learns that all other cars equipped with ATMOS have been activated.

Meanwhile, the Doctor's efforts to get Wilfred out of his car fail. He is interrupted when car alarms go off on the street. He looks up to see other parked cars emitting the gas. Up above, the Sontarans and Rattigan shout a war chant as the invasion begins.

Cast Edit

• The Doctor - David Tennant
• Donna Noble - Catherine Tate
• Martha Jones - Freema Agyeman
• Wilfred Mott - Bernard Cribbins
• Sylvia Noble - Jacqueline King
• Luke Rattigan - Ryan Sampson
• Colonel Mace - Rupert Holliday Evans
• General Staal - Christopher Ryan
• Commander Skorr - Dan Starkey
• Jo Nakashima - Elenor Matsuura
• Private Harris - Clive Standen
• Private Gray - Wesley Theobald
• Ross Jenkins - Christian Cooke
• Trepper - Rad Kaim
• ATMOS Voice - Elizabeth Ryder

Production crew Edit

To be added

References Edit

Technology Edit

• The Sontarans use cloning pools.

Individuals Edit

• Martha is now engaged to Tom Milligan.
• Martha's stated desire to change UNIT from the inside echoes Jack Harkness' similar statement regarding his intentions regarding Torchwood.
• Luke Rattigan invented Fountain Six.

Locations Edit

• The Doctor mentions the fifteenth broken moon of the Medusa Cascade.

Planets Edit

• The Doctor mentions Cotter Paluni's World as one of the planets he wanted to take Donna.

Species Edit

• General Staal is called a "baked potato" by Ross Jenkins.
• When the Sontarans realised they had an intruder, the Doctor replied, "How'd he get in, then? In-tru-der-window?" Henry van Statten said the same thing in TV: Dalek.
• The Sontarans' weak point is their probic vent: a small connector at the back of their necks that allows them to plug into an energy source to recharge.

Time wars Edit

• According to Staal, the Sontarans were not allowed to take part in the Last Great Time War.

Timeline Edit

• The Doctor said he worked with UNIT some time in the 1970s, "or was it the 80s?" - a reference to the UNIT dating controversy.

United Nations Intelligence Taskforce Edit

• Donna calls the UNIT soldiers "stormtroopers", referring to the characters from the Star Wars franchise, or perhaps the nickname for Nazi soldiers that inspired their name.
• The dialogue between the Tenth Doctor and Martha suggests that he helped get her job with UNIT.
• UNIT has received increased funding from the United Nations due to the increase in alien incidents: "all in the name of Homeworld Security".
• Martha mentions the Valiant.
• The Doctor is still technically a UNIT staff member, having never officially resigned. He's well known to UNIT.

Story notes Edit

• This episode marks the first television appearance of the Sontarans in twenty-three years. Their last regular series appearance was in The Two Doctors. The last time they were referred to was in 2007 in TV: Eye of the Gorgon. They had also appeared in several non-canonical or questionably canonical productions, including "A Fix with Sontarans" in 1985 and the early-1990s independent production Shakedown: Return of the Sontarans.
• Helen Raynor wrote this episode. Her Series 3 episodes Daleks in Manhattan and Evolution of the Daleks both filled fourth and fifth episode in the series. This two part episode also occupies episode four and five.
• This two-parter is Douglas Mackinnon's first story as director.
• When Donna asks the Doctor if it was his influence that turned Martha into 'a soldier', a few notes of Donna's theme music can be heard before it segues into the music which plays when the UNIT soldiers appear.
• Mobile phone company O2 released an ATMOS SatNav phone, possibly based on the devices used in this episode.
• On the Sontaran ship and in almost every shot you will see what looks like an Xbox 360 power indicator complete with the quarter circle lines and a dot in the centre. The only major difference is that it is purple rather than green.
• This show was made during the thirty-fifth anniversary of the Sontarans.
• In TV: The Time Warrior the Sontarans were described as "nasty, brutish and short". This is the first time that they are shown to actually be shorter than normal human stature.
• There is a UNIT character called Jenkins, a homage to a famous piece of dialogue: "Jenkins, chap with the wings there five rounds rapid" from TV: The Dæmons. In the commentary broadcast on BBC7, it was said that "Jenkins" was named for Richard Jenkins, who maintains the BBC's DW website.
• This is Christopher Ryan's second role in Doctor Who. He previously played Lord Kiv in TV: Mindwarp.
• UNIT has now been rebranded as the UNified Intelligence Taskforce, having previously been known as the United Nations Intelligence Taskforce. This followed a request by the United Nations shortly after the series returned to TV in 2005. Nonetheless, Martha still refers to UNIT receiving funding from the United Nations and the later TV: Children of Earth: Day One indicates that the UN still commands UNIT.
• When communicating with each other, UNIT use call signs first used in the classic series. These are mostly based on greyhound racing. Personnel are usually designated a Greyhound call sign and a base of operations is known as a Trap.
• Donna makes reference to the terrorist prisoner camps at Guantanamo Bay. This is one of the first references in the revived Doctor Who to the aftermath of the 9/11 attacks. Similarly, Martha refers to UNIT's funding being "in the name of Homeworld Security", a deliberate reference to the Department of Homeland Security established in the US after 9/11. It should be noted that while references to other post-9/11 events such as the Iraq War have been made in Doctor Who, Torchwood and The Sarah Jane Adventures, as of 2012, the franchise has yet to explicitly indicate that the Whoniverse experienced the actual events of 9/11.
• The cloning vat in this story is the fountain from TV: The Fires of Pompeii, redressed.
• The table that is used to hold the real Martha is used in the Torchwood episode TV: Cyberwoman. Also the metal headware that Martha has on at the same time looks like mind probe used the episode TV: Sleeper.
• Luke Rattigan, despite having an American accent, uses the word "clever" in the British sense of the word, in which it simply means "intelligent." While the word has a similar meaning in America, Americans generally use the word "clever" to mean not just intelligent but intelligent with an element of cunning, wit and imagination.
• As is routine for post-2005 Doctor Who, a "NEXT TIME" trailer for the next episode is shown at the end of the episode.

Ratings Edit

• Official - 7.06 million viewers

Filming locations Edit

Studio Edit

• Upper Boat Studios, Trefforest
• BBC Broadcasting House, Llandaff

Location Edit

• Margam Country Park, Port Talbot
• Usk Valley Business Park, Pontypool
• Nant Fawr Road, Cardiff
• Orion Electric, Port Talbort
• Roath Basin, Cardiff Docks

Production errors Edit

• The UNIT mobile lorry is much bigger on the inside than the outside. This was explained in the next episode's commentary.
  If you'd like to talk about narrative problems with this story — like plot holes and things that seem to contradict other stories — please go to this episode's discontinuity discussion.
• When the TARDIS lands where the Doctor and Martha are supposed to meet, as the camera pans, you can see that the inside panel of the TARDIS has been removed and the gap attached to the building behind it, to give the TARDIS that "bigger on the inside" look without the use of a green screen.

Continuity Edit

• The Doctor last saw Martha Jones in TV: Last of the Time Lords. It is not indicated on screen how long it has been for Martha since she last saw the Doctor, although it has been long enough for her to have joined UNIT, obtained her doctorate, become engaged to Tom Milligan and worked with Torchwood.
• Martha last appeared (chronologically) in TV: A Day in the Death. It is not yet known whether this episode (and the two that follow) occur before or after her later Torchwood involvement in AUDIO: Lost Souls. PROSE: Beautiful Chaos dates this episode as mid-April and Lost Souls is dated as June, meaning this takes place before that event.
• The Sontarans first appeared in TV: The Time Warrior and last appeared on TV broadcast screen in TV: The Two Doctors, though they did feature in a direct to video story: HOMEVID: Shakedown: Return of the Sontarans. They also feature in The Sontaran Experiment and The Invasion of Time. Though physically similar to prior appearances, their uniforms are now purple (though a few Sontarans seen aboard their command ship are seen in armour coloured more like previous versions, though they still have purple helmets and shoulder pads.) and their voices have taken on a more human quality. They are honourable when it comes to the rules of warfare and respect their enemies, but are callous and bloodthirsty.
• Sontarans using hypnosis to control workers and two soldiers is a nod to TV: The Time Warrior when Jingo Linx did so to scientists.
• One aspect of Sontaran culture introduced with this episode is the war-chant "Sontar-ha!" which had not been heard previously.
• Sontaran batons were first shown in TV: The Two Doctors.
• Donna has flashbacks of TV: Partners in Crime, The Fires of Pompeii and Planet of the Ood. It is stated in dialogue that, from her grandfather and mother's perspective, it has only been days since the events of Partners in Crime.
• In TV: Eye of the Gorgon, Bea Nelson-Stanley referred to the Sontarans as potato-like. Clyde Langer also makes a similar remark about "spuds" in TV: The Last Sontaran.
• Sylvia Noble recognises the Doctor and references the events of The Runaway Bride, while Wilfred Mott recognises the Doctor from his brief encounter with him in Voyage of the Damned. Wilfred's absence from The Runaway Bride is explained by Sylvia when she says he was ill with flu at the time of Donna's interrupted wedding.
• The Doctor's initial response to Martha and Donna meeting each other is to ask them not to fight, which is what happened when Rose Tyler met Sarah Jane Smith in TV: School Reunion.
• The Doctor mentions that the ATMOS devices are a temporal pocket one second out of sync with real time. The same is later said for the Medusa Cascade in the TV: The Stolen Earth.
• Staal and Luke stare out the window in a scene reminiscent of the scene from Helen Raynor's previous story Daleks in Manhattan in which Diagoras and a Dalek are also staring out a window. In both, the alien comments on the human's ambition.
• Martha's engagement to Tom Milligan is announced in this episode. She met Tom during her last adventure with the Doctor in Last of the Time Lords. During the intervening time, she referred to dating a doctor (Milligan) in TV: Reset. She is said to be on honeymoon during TV: Children of Earth: Day One. In TV: The End of Time we find that she eventually married Mickey Smith.
• Donna quickly knowing how to fly the TARDIS may be a foreshadowing of her becoming part Time Lord.
• While in the jeep the Doctor asks Ross to contradict the ATMOS navigation and "turn right". This is a possible reference to the events of TV: Turn Left.
• When the Doctor meets Wilfred and they shake hands, Wilfred comments, "Ooh, an alien hand." This may be a reference to Donna's Time Lord meta-crisis which involves making contact with the Doctor's hand. (TV: Journey's End)

Home video releases Edit

• This story was released in the Series 4 DVD box set in November 2008 along with the rest of the series.
• It was released as Series 4 Volume 2 in a vanilla edition with The Poison Sky, The Doctor's Daughter and The Unicorn and the Wasp.

External links Edit

• Official BBC Website - Episode Guide for The Sontaran Stratagem
• Detailed synopsis of The Sontaran Stratagem at the Doctor Who Reference Guide
• The Sontaran Stratagem at Shannon Sullivan's A Brief History of Time (Travel)
• The Sontaran Stratagem at The Locations Guide

v • e Doctor Who television stories   Seasons 1-4: First Doctor Season 1 1963 1964 An Unearthly Child • The Daleks • The Edge of Destruction • Marco Polo • The Keys of Marinus • The Aztecs • The Sensorites • The Reign of Terror Season 2 1964 1965 Planet of the Giants • The Dalek Invasion of Earth • The Rescue • The Romans • The Web Planet • The Crusade • The Space Museum • The Chase • The Time Meddler Season 3 1965 1966 Galaxy 4 • Mission to the Unknown • The Myth Makers • The Daleks' Master Plan • The Massacre of St Bartholomew's Eve • The Ark • The Celestial Toymaker • The Gunfighters • The Savages • The War Machines Season 4 1966 The Smugglers • The Tenth Planet   Seasons 4-6: Second Doctor Season 4 1966 1967 The Power of the Daleks • The Highlanders • The Underwater Menace • The Moonbase • The Macra Terror • The Faceless Ones • The Evil of the Daleks Season 5 1967 1968 The Tomb of the Cybermen • The Abominable Snowmen • The Ice Warriors • The Enemy of the World • The Web of Fear • Fury from the Deep • The Wheel in Space Season 6 1968 1969 The Dominators • The Mind Robber • The Invasion • The Krotons • The Seeds of Death • The Space Pirates • The War Games   Seasons 7-11: Third Doctor Season 7 1970 Spearhead from Space • Doctor Who and the Silurians • The Ambassadors of Death • Inferno Season 8 1971 Terror of the Autons • The Mind of Evil • The Claws of Axos • Colony in Space • The Dæmons Season 9 1972 Day of the Daleks • The Curse of Peladon • The Sea Devils • The Mutants • The Time Monster Season 10 1972 1973 The Three Doctors • Carnival of Monsters • Frontier in Space • Planet of the Daleks • The Green Death Season 11 1973 1974 The Time Warrior • Invasion of the Dinosaurs • Death to the Daleks • The Monster of Peladon • Planet of the Spiders   Seasons 12-18: Fourth Doctor Season 12 1974 1975 Robot • The Ark in Space • The Sontaran Experiment • Genesis of the Daleks • Revenge of the Cybermen Season 13 1975 1976 Terror of the Zygons • Planet of Evil • Pyramids of Mars • The Android Invasion • The Brain of Morbius • The Seeds of Doom Season 14 1976 1977 The Masque of Mandragora • The Hand of Fear • The Deadly Assassin • The Face of Evil • The Robots of Death • The Talons of Weng-Chiang Season 15 1977 1978 Horror of Fang Rock • The Invisible Enemy • Image of the Fendahl • The Sun Makers • Underworld • The Invasion of Time Season 16 1978 1979 The Key to Time: The Ribos Operation • The Pirate Planet • The Stones of Blood • The Androids of Tara • The Power of Kroll • The Armageddon Factor Season 17 1979 1980 Destiny of the Daleks • City of Death • The Creature from the Pit • Nightmare of Eden • The Horns of Nimon • Shada (unbroadcast) Season 18 1980 1981 The Leisure Hive • Meglos • Full Circle • State of Decay • Warriors' Gate • The Keeper of Traken • Logopolis   Seasons 19-21: Fifth Doctor Season 19 1982 Castrovalva • Four to Doomsday • Kinda • The Visitation • Black Orchid • Earthshock • Time-Flight Season 20 1983 Arc of Infinity • Snakedance • Mawdryn Undead • Terminus • Enlightenment • The King's Demons Children in Need 1983 The Five Doctors Season 21 1984 Warriors of the Deep • The Awakening • Frontios • Resurrection of the Daleks • Planet of Fire • The Caves of Androzani   Seasons 21-23: Sixth Doctor Season 21 1984 The Twin Dilemma Season 22 1985 Attack of the Cybermen • Vengeance on Varos • The Mark of the Rani • The Two Doctors • Timelash • Revelation of the Daleks Season 23 1986 The Trial of a Time Lord: The Mysterious Planet • Mindwarp • Terror of the Vervoids • The Ultimate Foe   Seasons 24-26: Seventh Doctor Season 24 1987 Time and the Rani • Paradise Towers • Delta and the Bannermen • Dragonfire Season 25 1988 1989 Remembrance of the Daleks • The Happiness Patrol • Silver Nemesis • The Greatest Show in the Galaxy Season 26 1989 Battlefield • Ghost Light • The Curse of Fenric • Survival   TV Movie: Eighth Doctor TV Movie 1996 Doctor Who   Series 1: Ninth Doctor Series 1 2005 Rose • The End of the World • The Unquiet Dead • Aliens of London / World War Three • Dalek • The Long Game • Father's Day • The Empty Child / The Doctor Dances • Boom Town • Bad Wolf / The Parting of the Ways   Series 2-4: Tenth Doctor Series 2 2005 2006 Mini-episode Children in Need Special Christmas special The Christmas Invasion Regular episodes New Earth • Tooth and Claw • School Reunion • The Girl in the Fireplace • Rise of the Cybermen / The Age of Steel • The Idiot's Lantern • The Impossible Planet / The Satan Pit • Love & Monsters • Fear Her • Army of Ghosts / Doomsday Series 3 2006 2007 Christmas special The Runaway Bride Regular episodes Smith and Jones • The Shakespeare Code • Gridlock • Daleks in Manhatten / Evolution of the Daleks • The Lazarus Experiment • 42 • Human Nature / The Family of Blood • Blink • Utopia / The Sound of Drums / Last of the Time Lords Animation The Infinite Quest Series 4 2007 2008 2009 2010 Mini-episode Time Crash Christmas special Voyage of the Damned Regular episodes Partners in Crime • The Fires of Pompeii • Planet of the Ood • The Sontaran Stratagem / The Poison Sky • The Doctor's Daughter • The Unicorn and the Wasp • Silence in the Library / Forest of the Dead • Midnight • Turn Left • The Stolen Earth / Journey's End • The Next Doctor • Planet of the Dead • The Waters of Mars • The End of Time Mini-episode Music of the Spheres Animation Dreamland For the purposes of this list, "series 4" is considered to be the production series 4, which ran all the way from Time Crash to The End of Time.   Series 5-present: Eleventh Doctor Series 5 2010 Regular episodes The Eleventh Hour • The Beast Below • Victory of the Daleks • The Time of Angels / Flesh and Stone • The Vampires of Venice • Amy's Choice • The Hungry Earth / Cold Blood • Vincent and the Doctor • The Lodger • The Pandorica Opens / The Big Bang Series 6 2010 2011 Christmas special A Christmas Carol Mini-episodes Space / Time Regular episodes Spring Half: The Impossible Astronaut / Day of the Moon • The Curse of the Black Spot • The Doctor's Wife • The Rebel Flesh / The Almost People • A Good Man Goes to War Autumn Half: Let's Kill Hitler • Night Terrors • The Girl Who Waited • The God Complex • Closing Time • The Wedding of River Song Mini-episodes Death Is the Only Answer Series 7 2011 2012 2013 Christmas special The Doctor, the Widow and the Wardrobe Mini-episode Good as Gold Regular episodes Autumn Half: Asylum of the Daleks • Dinosaurs on a Spaceship • A Town Called Mercy • The Power of Three • The Angels Take Manhattan Mini-episode The Great Detective Christmas special The Snowmen Regular episodes Spring Half: The Bells of Saint John • The Rings of Ahkaten • Cold War • Hide • Journey to the Centre of the TARDIS • The Crimson Horror • Nightmare in Silver • The Name of the Doctor Despite marketing language by the BBC, The Adventure Games are not televised episodes, and therefore are not included on this list. Deliberately not included are some stories which this wiki does not consider valid — such as the so-called "Pilot Episode", Dimensions in Time, A Fix with Sontarans, Search Out Space, The Curse of Fatal Death and the National Television Awards Sketch 2011.

v • e Sontaran stories Television Broadcast The Time Warrior • The Sontaran Experiment • The Invasion of Time • The Two Doctors • The Sontaran Stratagem / The Poison Sky • The Pandorica Opens • A Good Man Goes to War • The Snowmen • The Crimson Horror • The Name of the Doctor • The Last Sontaran • Enemy of the Bane Direct-to-video Shakedown: Return of the Sontarans • Mindgame • Mindgame Trilogy Video Games Destiny of the Doctors • The Gunpowder Plot Prose Shakedown • Lords of the Storm • The Infinity Doctors • The Sontaran Games • The Taking of Chelsea 426 • Blind Terror Audio Heroes of Sontar • The Five Companions • The First Sontarans • Silent Warrior • Conduct Unbecoming • Old Soldiers Comics The Final Quest • The Outsider • Dragon's Claw • Black Sun Rising • The Gods Walk Among Us • Pureblood • Conflict of Interests • Black Legacy • Unnatural Born Killers • The Betrothal of Sontar • Fugitive Complete list of appearances

v • e UNIT television stories Doctor Who Major The Invasion • Spearhead from Space • Doctor Who and the Silurians • The Ambassadors of Death • Inferno • Terror of the Autons • The Mind of Evil • The Claws of Axos • The Dæmons • Day of the Daleks • The Time Monster • The Three Doctors • The Green Death • Invasion of the Dinosaurs • Planet of the Spiders • Robot • Terror of the Zygons • The Android Invasion • Battlefield • The Christmas Invasion • The Sontaran Stratagem / The Poison Sky • Turn Left • The Stolen Earth / Journey's End • Planet of the Dead • The Power of Three Minor Colony in Space • The Time Warrior • The Seeds of Doom • Mawdryn Undead • The Five Doctors • Aliens of London / World War Three • The Sound of Drums / Last of the Time Lords • The End of Time • The Bells of Saint John Torchwood Fragments • Children of Earth: Day One • Children of Earth: Day Three • Children of Earth: Day Five SJA Enemy of the Bane • Death of the Doctor Complete list of appearances

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