The Tsuranga Conundrum (TV story)

The Tsuranga Conundrum
Doctor:	Thirteenth Doctor
Companion(s):	Graham, Ryan, Yaz
Main enemy:	Pting
Main setting:	Tsuranga, 67th century
Key crew
Writer:	Chris Chibnall
Director:	Jennifer Perrott
Producer:	Alex Mercer
Release details
Story number:	280
Premiere broadcast:	4 November 2018
Premiere network:	BBC One
Format:	1x51 minute episode
Official trailer
Memorable moment
Behind the scenes video
Doctor Who television stories
← Previous	Arachnids in the UK
Next →	Demons of the Punjab
Production order
← Previous	The Witchfinders
Next →	Kerblam!

The Tsuranga Conundrum was the fifth episode of series 11 of Doctor Who.

The episode followed the Thirteenth Doctor and her companions caught up on a hospital ship and facing a new threat, the Pting, a creature that only consumes non-organic matter. The story also expanded on Ryan's family backstory regarding losing his mother.

Synopsis

As the Thirteenth Doctor and her friends end up stranded without the TARDIS on a hospital ship in space, with a strange and potentially deadly intruder on board, it is up to them, the crew, and the patients to figure out what it is, what it wants, and how to stop it before the creature tears the ship apart.

Plot

On Seffilun 27 in a junk galaxy, the Thirteenth Doctor, Ryan, Yasmin, and Graham are using modified metal detectors look for spare parts for the TARDIS. When asked what they are looking for, the Doctor holds up an extra part for her friends to see. She mentions that the last time she was there, she was able to find at least six of them. However, she then takes back her claim, wondering if she had instead been searching on Seffilun 59. The Doctor adds that's the problem with junk galaxies; the seffiluns all look the same. Graham asks which one they currently on, to which the Doctor explains is very far away from the one she mentioned. Graham voices annoyance, only for the Doctor to counter she did take them all for rainbathing on upward tropics of Kinstarno. Graham quickly changes his tune, explaining the "needle in a haystack" search is aggregating.

Ryan calls over to the group, explaining that his detector has found something. Everyone races over to help uncover what Ryan has found. Its a round device, which starts beeping. The Doctor tells her companions to hold very still; she takes out the sonic, clearing meaning the device is dangerous. When asked what it is, the Doctor explains that it's sonic mine; she wonders if its somebody's idea of a bad joke. She attempts to put the device in stasis, but fails. She gives a countdown to when it will detonate, and everything goes white at detonation.

The Doctor begins regaining consciousness, hearing two different voices from her friends. She sees a man, who helps her sit up and tests her eye's response to light; she's currently in a medical facility. A woman takes his place, asking about her medtag. The Doctor ignores her, watching the man notice something off on a monitor. The Doctor continues to stabilize, as Ryan tells the female nurse that the quartet don't have medtags. She explains that all patients must have them, so they can know how to take care of them; the male nurse explains that it gives them every last scrap of data on a person's biology, to avoid killing them. The Doctor asks where they are, to which Graham explains she is the last of them to be woken up. Its been four days since the sonic mine went off; they were lucky that scavenger bots found them and brought them to Tsuranga. The Doctor notes that the name is familiar, but immediately fears for the safety of her TARDIS; if its left behind on a junk planet, it could be scavenged.

Despite the nurses' insistence that she remain seated until she finishes stabilizing, the Doctor gets up and proceeds out the door, with her reluctant companions following her. The male nurse follows after her, prompting the Doctor to ask for his name; it's Astos, and the woman is Mabli. He asks for her to return to the assessment area, only for the Doctor to ignore him and walk into the next door she sees in the hopes of getting back to her beloved ship and home. However, she ends up in another patient's room. To the Doctor's amazement, the patient is Eve Cicero, who is mentioned in the Book of Celebrants; accompanying Eve are her brother Durkas Cicero and her android consort Ronan. After mentioning her name, the Doctor is recognized by Eve as someone who has a whole chapter dedicated to them in the book, but the Doctor brushes it off as due to "Doctor" being a common name. She and her companions leave, but she pokes her head back in to tell Eve that it was "more of volume than a chapter".

Back in the hall, the Doctor continues her trek, despite Astos' insistance. She sonics a nearby interface for information, before heading into another room by accident. It contains a man named Yoss Inkl, whom Ryan and Yaz attempt pleasant conversation with to make up for the Doctor's rudeness. Yoss reveals that he's pregnant, due to a "typical mistake", much to the humans' confusion. The Doctor explains that Yoss is a Gifftan; their species has both genders give birth, but only to the same gender. Astos again asks the Doctor to return to her room, but the Doctor loses her balance and suddenly realizes why Tsuranga sounded familiar. Its a ship, not a hospital.

Ignoring Astos again, the Doctor begins trying to find the bridge to find a way off the ship. Ryan, Yaz and Graham decide to return to their room. Reaching the control room, the Doctor finds no crew. Astos explains the ship runs on auto-pilot. The Doctor attempts to sonic the controls to get back to Seffilun 27, but Astos explains the ship will register any kind of hacking as a hostile takeover and will signal Resus One to destroy the ship. Having a moment to calm down, the Doctor realizes she's been acting selfish.However, she then remembers Astos being concerned about something when she woke up, which he attempts to cover up; she knows he's a bad liar. Relenting, Astos reveals the ship has placed in an asteroid field too close to Constant Division, disputed territory. Suddenly an alarm goes off, warning of a hull break, which the ship seals. The Doctor notices that something is moving quickly from the port side life-pod to the starboard side, deciding to investigate. Astos gives the Doctor a com-link to stay in touch with him, but on a different channel than Mabli's; its only her second time out, so she's very nervous.

Durkas confides in Graham that he is worried that his sister is hiding a medical condition from him.

In the meantime, Durkas has arrived at the assessment area, and is trying to hack into Eve's medical records. Graham arrives, joking that he can either walk away and pretend to have not seen this, or they can talk about why Durkas is doing this. Graham explains that sometimes, people keep secrets about themselves that could hurt their families. Drukas explains how his sister is keeping him at a distance, even showing him disrespect for being a mechanic, instead of a great pilot like her. And now she's being treated for Corden Fever, which is an easily treated disease; her distance makes him think there is something else wrong with her.

In the hall, Ronan asks Mabli for more Adrenaline blockers for Eve. When Mabli protests that they only have a limited supply of them, Ronan subtly threatens to have her fired from her job by reporting to her superiors that she was not providing adequate care for her patient. Recognizing Ronan's threat, Mabli agrees.

In the meantime, the Doctor and Astos each approach a life-pod,l with the Doctor checking the port side. When she gets there, she finds the power mostly off. Worse, she finds the life-pod missing. Astos finds the life-pod on his side still there, hearing something moving around above it. Despite the Doctor warning him not to enter the pod, Astos makes the rookie mistake of not listening to the warning and gets trapped inside of it. The damage the unknown creature has done to the pod has it begin ejecting from the ship; however, the damage it caused will make it explode due to the pod being unstable. Astos gives an encouraging farewell message to Mabli before meeting his fate. The explosion shakes the ship.

The Doctor heads over to other side of the ship to find out what caused Astos' death. She finds a small creature devouring metal from the ship. It snarls at her, just as Graham, Ryan, Yaz and Mabli arrive. The Doctor lists off the things it has done, slowly trying to scan it with the sonic. However, the creature swallows the sonic and spits it back out, de-powering the device.

The Doctor learns the identity of her foe.

Everyone flees back to the hub, where the Doctor catches her companions up on the facts. Mabli reveals she has contacts that record her work for training purpose, using what she saw to search the database; she finds an entry. The creature is called Pting, which are toxic to touch, eat non-organic material and VERY hard to kill. The Doctor tells her companions to gather everyone in the assessment area, hoping to have a plan within an hour. An alarm goes off, as the ship has detected the Pting. Mabli explains they can confirm or deny it; the Doctor denies it, only to learn it only works three times and then the ship gets destroyed as a precaution. The Doctor is less the pleased to hear about the latest addition to their death-trap puzzle.

to be added

Cast

• The Doctor - Jodie Whittaker
• Graham O'Brien - Bradley Walsh
• Ryan Sinclair - Tosin Cole
• Yasmin Khan - Mandip Gill
• Astos - Brett Goldstein
• Mabli - Lois Chimimba
• Eve Cicero - Suzanne Packer
• Durkas Cicero - Ben Bailey-Smith
• Ronan - David Shields
• Yoss - Jack Shalloo

Crew

Executive Producers   Matt Strevens and Chris Chibnall

Co-executive producer   Sam Hoyle

Series Producer   Nikki Wilson

General production staff Head of Production - Radford Neville Executive Producer for the BBC - Ben Irving Production Executive - Tracie Simpson Line Producer - Steffan Morris Production Manager - James DeHaviland Supervising Location Manager - Iwan Roberts Location Manager - Lyn Moses Unit Manager - Jac Jones Production Co-ordinator - Sandra Cosfeld Assistant Production Co-ordinator - Jessica Elise Evans Production Secretary - Jade Stephenson Executive Assistant - Caroline Cook Unit Drivers - Sean Evans, Paul Watkins, Jolyon Davey Unit Medic - Glyn Evans Business Affairs - Carol Griggs, Steve Robson Production Accountant - Laurence Parker Assistant Accountants - Helen Searle, Kate Barber-Williams Script department Series Script Editor - Sheena Bucktowonsing Script Editor - Fiona McAllister Assistant Script Editor - Hannah Mason Camera and lighting department 1st Assistant Director - Ben Rogers 2nd Assistant Director - Delmi Thomas 3rd Assistant Director - Christopher J Thomas Assistant Directors - Lauren Pate, Sion Eirug Script Supervisor - Nicki Coles Camera Operator - Mark McQuoid ACO Focus Pullers - Jonathan Vidgen, Steve Rees Grip - John Robinson Assistant Grip - Ash Whitfield Camera Assistants - Gethin Williams, Scott Waller, Cai Stephens Gaffer - Mark Hutchings Best Boy - Andy Gardiner Electricians - Bob Milton, Gawain Nash, Andrew Williams, Gareth Sheldon	Art department Supervising Art Director - Dafydd Shurmer Assistant Art Director - Lissa Lamona Art Department Co-ordinator - Isabelle Kennedy Art Department Accountant - Karen Evans Petty Cash Buyer - Kayleigh Powell Trainee Buyer - Georgia Reece Set Decorator - Vicki Male Set Designers - Julia Jones, Zsofia Ekler Storyboard Artist - Michael Collins Concept Artist - Darren Fereday Graphic Designer - Richard Wells Standby Props - Matthew Ireland, Cerys Lewis Standby Carpenter - Paul Jones Prop Hands - Atiff Tahir, John Thomas, Tom Major Standby Art Director - Anwen Haf Rigging - Shadow Scaffolding Standby Rigger - Colin Toms HOD Painter - Steve Fudge Chargehand Painters - Mark Reece, Lloyd Reece Storeman - Charlie Malik Prop Master - Paul Aitken Props Chargehand - Stuart Rankmore Prop Fabrication - Penny Howarth Specialist Prop Maker - Nick Robatto Construction Manager - Mark Painter Workshop Manager - Mark Hill Workshop Assistant - Chris Slocombe Construction Chargehands - Dean Tucker, John Sinnott Construction Drivers - Darren Bousie, Jason Tylke Practical Electrician - Matthew Dunford Scenic Artists - Jeremy Duckham, Gemma Dorie Carpenters - Terry Horle, Joseph Painter, Mat Ferry, Tim Burke, Campbell Fraser, Chris Daniels, George Rees, Jonathan Tylke Costume department Assistant Costume Designers - Emma Burnand, Simon Marks Costume Assistants - Ian Fowler, Andie Mear, Jenny Tindle, Holly Williams	Make-up and prosthetics Make-up Supervisor - Emma Cowen Make-up Artists - Amy Riley, Charlotte Giles Junior Make-up Artist - Hanna Lewis-Jones Casting Casting Associate - Ri McDaid-Wren Casting Assistant - Louis Constantine General post-production staff Post-production Supervisor - Ceres Doyle Post-production Co-ordinator - Claire Rees Assistant Editors - David Davies, Hayley Williams On-line Editors - Geraint Pari Huws, Christine Kelly Special and visual effects VFX Editor - Martyn Western Colourist - Gareth Spensley Head Modelmaker - Lee Radford Sound Sound Recordist - Deian Llŷr Humphreys Dubbing Mixer - Howard Bargroff Sound Maintenance Engineers - Tam Shoring, Christopher Goding Dialogue Editor - Darran Clement ADR Editor - Matthew Cox SFX Editor - Harry Barnes Foley - Bang Post Production

Not every person who worked on this adventure was credited. The absence of a credit for a position doesn't necessarily mean the job wasn't required. The information above is based solely on observations of the actual end credits of the episodes as broadcast, and does not relay information from IMDB or other sources.

References

The Doctor

• The Doctor has a stethoscope.
• The Doctor claims she is a doctor of medicine, science, engineering, candy floss, LEGO, philosophy, music, problems, people and hope, but mostly hope.
• The Doctor awards points to and claims to keep score of everything her companions accomplish.

Culture

• Yaz compares the Tsuranga to the Red Cross.
• Astos says he made a rookie mistake.
• Danger levels mentioned are chalice and beetroot.
• Graham mentions how he has watched every episode of Call the Midwife, although he looks away at the squeamish parts.
• Yoss needed doulas for his birthing. Graham and Ryan agreed to do it.

Species

• Gifftan males and females can both become pregnant, with males only birthing male children and vice-versa. Gifftan young are gestated for a week in a pregnancy sac before the sac is painlessly cut open during birth.
• Gifftan babies are born with two umbilical cords.
• Images of Davros, a Cyberman, an Ood, a Weeping Angel, a Raxacoricofallapatorian, a Sontaran, a Silent, a Silurian, and a Zygon appear on a console screen in rapid succession before Mabli selects a briefing on the Pting.
  • These are given as the Perils of the Constant Division with Pting labelled Item Seven Alpha Cubed.
• Time Lords possess an organ called an ectospleen. When damaged they can cause pain.
• Eve Cicero went up against the Aeons.
• The Doctor compares the Pting to a mouse.

Food and beverages

• The Doctor compares the bomb to a piece of large cheese.
• Yoss thinks Avocado Pear is a person. Ryan and Graham discuss whether they're fruits or vegetables.

People

• Eve Cicero is a Neuro pilot with Pilot's Heart, although she plays it off as Corden Fever.
  • She is mentioned in the Book of Celebrants for her part in defeating the Army of the Aeons in the Battle of the Underkind.
• The Doctor is also in the Book of Celebrants, though Eve thinks her inclusion was a chapter and the Doctor describes it as 'more a volume'.
• Ryan mentions Grace's funeral, his dad and his mum's death.
• The Doctor calls to meeting, Poirot-style.
• Astos was Chief Medic.
• Eve graduated to Neuro Fleet Commander with record speed.
• Due to the Doctor's babbling, Ronan and Yaz says they experience comprehension deficiency.
• When Yaz says the number 51, the Doctor says that it's a pentagonal number, atomic number of antimony and that it's the number of federalist papers written by Alexander Hamilton. She also says that she loves that show and has seen all 900 casts.
• Yoss gives birth to Avocado Inkl naming him such, thinking there's an Earth hero called Avocado Pear.

Biology

• Yoss' internal fluids breaks due to his son coming.

Locations

• The junk planets Seffilun 27 and Seffilun 59 are located in a Junk galaxy.
• The TARDIS team had just been rainbathing in the upward tropics of Kinstarno.
• Keebans are from the Keeba galaxy.
• Yoss is stationed in Pod Two.
• The Tsuranga is heading for Resus One, specifically the Tsuranga Hub.
• The Tsuranga has entered the edges of the Constant Division.
• Ronan says complaints are filed to Keeba Central.
• The Tsuranga is being routed through an asteroid field.
• Yaz mentions England as she kicks the Pting.
• Graham and Yoss mentions Earth.

Medicine

• Eve uses adrenaline blockers to get through her condition.
• Mabli gives Yoss pain management for his birth.

Technology

• The TARDIS team is searching the junk planet with modified metal detectors.
• Graham found a sonic mine. The Doctor failed at putting it in temporal lock.
• The Tsuranga patients all have to wear medtags, indicating their full bio-history, allergies, fluid levels, lifespan data.
• The TARDIS team were rescued by robo-dredgers.
• All assessment zones on the Tsuranga have privacy indicators built in.
• Ronan is a clone drone Android.
• The Tsuranga is a QuadZone Rescue Craft.
• Resus One has post-recuperation onward teleports.
• The Tsuranga has a NavChamber for navigation.
• The Tsuranga has self-repairing shielding.
• The Tsuranga has two life pods. One in portside and one in starboard.
• The staff uses comm dots to communicate on great distances.
• Everyone onboard the Tsuranga has ocular recorders. Yaz says it's like a posh version of her uniform camera.
• Resus One can perform remote structural termination (RST) to the Tsuranga.
• Without the central systems, the Tsuranga loses heat and oxygen.
• The Tsuranga has stazers onboard.
• if the ship's auto-routing were broken, Resus One would go straight to Hostility Protocols.
• The Tsuranga has BirthBuds installed in the pods.
• Anti-matter drives were used in the 67th century to power their ships.
  • The Doctor compares the particle accelerator to the iPhone version of CERN.
  • The Doctor says that the particle accelerator smashes the atoms together, like a little anti-matter factory, to produce positrons, which are then stored very carefully inside electric and magnetic fields. The positrons interact with the fuel materials to produce heat, which produces thrust.
• Yaz uses a MedBlanket to pick up the Pting.
• Eve attaches herself to a VR control system to control the ship.
• The Doctor's sonic screwdriver is self-rebooting.
• Every Tsurangan Rescue Craft has a bomb built in.
• Graham mentions how Ryan spends time on YouTube.

Sport

• Yaz mentions footballer Siobhan Chamberlain when kicking the Pting down a corridor on the Tsuranga.

Story notes

• Pretty much every scientific fact about anti-matter given by the Doctor in this episode is true to real science. However, in reality, because antimatter is produced via pair production, energy gained by antimatter-matter reactions would not exceed the energy required to create it; therefore energy generation would have to be performed by captured antimatter that has not been manufactured.
• Tim Price receives a creator credit for the Pting, the first time such a credit is given on a creature or character's first appearance.

Ratings

• 6.12 million (UK overnight)
• 7.76 million (UK final)

Filming locations

to be added

Production errors

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.

to be added

Continuity

• The Doctor notes that she has "only just" recovered her TARDIS. (TV: The Ghost Monument) So she doesn't want to lose it again.
• The Doctor says "snap" when her and the general say the same thing. She has said this in her second, sixth, (TV: The Two Doctors) tenth (TV: Time Crash) and twelfth (TV: Twice Upon a Time) incarnations.
• The Doctor uses her stethoscope. It was commonly used by her tenth incarnation (TV: Evolution of the Daleks, Midnight, The Next Doctor) and occasionally her eleventh incarnation. (TV: The Lodger)
• The Doctor and her friends have been rescued from a perilous situation before by a passing ship. (TV: The Ghost Monument)
• Ryan mentions how his dad did not come to Grace O'Brien's funeral. (TV: The Woman Who Fell to Earth)
• Graham still calls the Doctor "Doc". (TV: Rosa, Arachnids in the UK)
• Graham once more tries to fist bump Ryan only for the man to refuse as it's "uncool" of him. (TV: Rosa)
• Ryan elaborates on his mother's death. (TV: The Woman Who Fell to Earth)
• Graham mentions the fact that Ryan spends time on YouTube. (TV: The Woman Who Fell to Earth)
• The Doctor's sonic screwdriver is once again eaten. (TV: The Eleventh Hour, A Christmas Carol)
• Once again, the Thirteenth Doctor loses possession of her TARDIS. (TV: Twice Upon a Time) She also lost it during her first, (TV: Marco Polo) second, (TV: The Faceless Ones, The Evil of the Daleks, COMIC: Egyptian Escapade) third, (COMIC: Backtime) fourth, (TV: The Ark in Space, AUDIO: The Beast of Kravenos) eighth, (AUDIO: A Life in the Day, The Sontaran Ordeal) tenth, (TV: The Impossible Planet, Blink, Utopia, Voyage of the Damned, The Poison Sky) eleventh (TV: Amy's Choice, The Lodger, The Doctor's Wife) and twelfth incarnations. (TV: Face the Raven)
• The Doctor loves the musical Hamilton, and has seen it many times throughout her lives. (COMIC: The Long Con)
• Graham mentions that Ryan is descended from an Earth nurse. (TV: The Woman Who Fell to Earth)

Home video releases

DVD releases

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Blu-ray releases

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Digital releases

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External links

• Official The Tsuranga Conundrum page on the Doctor Who website