Ivan – Kieran Bew
Tasker – Justin Salinger
Dahh-Ren – Peter Caulfield
Abby – Mimi Ndiweni
Ellie – Katie Brayben
Student – Lauren Pate
White-Haired Zombie – Clem So
General production staff
Head of Production – Gordon Ronald
Production Executive – Tracie Simpson
Line Producer – Steffan Morris
Production Manager – Adam Knopf
Location Manager – Nicky James
Unit Manager – Beccy Jones
Production Co-ordinator – Sandra Cosfeld
Assistant Production Co-ordinator – Nicola Chance
Production Assistants – Virginia Bonet, Jamie Shaw
Unit Drivers – Sean Evans, Kyle Davies
Unit Medic – Glyn Evans
Business Affairs Executive – Carol Griggs
Production Accountant – Simon Wheeler
Assistant Accountants – Justine Wooff, Matthew Fisher
Camera and lighting department
1st Assistant Director – Simon Morris
2nd Assistant Director – James DeHaviland
3rd Assistant Director – Christopher J Thomas
Assistant Directors – Rhun Llewelyn, Lauren Pate
Script Supervisor – Nicki Coles
Camera Operator – Mark McQuoid
Focus Pullers – Jonathan Vidgen, Elhein De Wet
Grip – John Robinson
Assistant Grip – Sean Cronin
Camera Assistants – Gethin Williams, Drew Marsden, Dan Patounas
Gaffer – Mark Hutchings
Best Boy – Andy Gardiner
Electricians – Gawain Nash, Gareth Sheldon, Bob Milton, Sion Davies, Andrew Williams
Art department
Supervising Art Director – Paul Spriggs
Art Director – Tim Overson
Art Department Accountant – Bethan Griffiths
Production Buyer – Jen Saguaro
Set Decorator – Adrian Anscombe
Prop Buyers – Jo Pearce, Charlotte Lailey de Ville
Storyboard Artist – Mike Collins
Concept Artist – Darren Fereday
Graphic Artists – Matt Clark, Lawrence Hearn
Standby Props – Matt Ireland, Jonathan Barclay
Standby Carpenter – Paul Jones
Prop Hands – Scott Howe, Nigel Magni, Matt Watts
Standby Art Director – Nick Murray
Rigging – Shadow Scaffolding
Standby Rigger – Nigel Owen
Head Scenic Artist – Clive Clarke
Painters – Steve Nelms, John Nelms, Paul Murray, Debby McShane
Storeman – Jamie Southcott
Prop Master – Paul Smith
Props Chargehand – Kyle Belmont
Props Driver – Gareth Fox
Construction Manager – Terry Horle
Construction Chargehand – Dean Tucker
Construction Driver – Jonathan Tylke
Construction Labourer – Jason Tylke
Practical Electricians – Callum Alexander, Austin Curtis
Graphics Assistant – Jack Bowes
Draughtspersons – Matt Sanders, Kartik Nagar
Chargehand Carpenter – John Sinnott
Carpenters – Tim Burke, Matt Ferry, Chris Daniels, George Rees, Dan Berrow, Tom Berrow, Keith Richards, Campbell Frazer, Joe Painter, Alan Jones, Mike Venables
Title Concept – Billy Hanshaw
Costume department
Costume Supervisor – Kat Willis
Assistant Costume Designer – Zoe Howerska
Costume Assistants – Rebecca Cunningham, Leila Headon, Jenny Tindle
Make-up and prosthetics
Make-up Supervisor – James Spinks
Make-up Artists – Megan Bowes, Lolly Goodship
Movement
Stunt Co-ordinators – Crispin Layfield, Belinda McGinley
Stunt Performer – Elliot Philip Murray
Choreographer – Ailsa Burke
Wires – Bob Schofield
Casting
Casting Associate – Ri McDaid-Wren
Casting Assistant – Louis Constantine
General post-production staff
Post-production Supervisor – Samantha Price
Post-production Co-ordinator – Hannah Jones
Assistant Editors – Becky Trotman, David Davies
On-line Editors – Geraint Pari Huws, Mark Hardyman
Assistant On-line Editor – Christine Kelly
Special and visual effects
VFX Editor – Dan Rawlings
Special Creature Effects & Prosthetics – Millennium FX
Wires – Bob Schofield
Colourist – Gareth Spensley
Sound
Sound Recordist – Deian Ll┼╖r Humphreys
Dubbing Mixers – Mark Ferda, Darran Clement
Sound Maintenance Engineers – Tam Shoring, Christopher Goding
Dialogue Editor – Helen Dickinson
ADR Editor – Matthew Cox
Effects Editor – Harry Barnes
Foley Editor – Simon Clement
Foley Artist – Meltem Baytok
Responding to a distress call, the Doctor and Bill arrive on a space station where suits have begun killing their owners to conserve oxygen. The company running the station values profit over human life. The Doctor sacrifices his own safety to disable the system, temporarily losing his sight. The survivors escape, and the Doctor hides his blindness from Bill.
The Doctor, Bill Potts, and their companion are trapped on a space station where oxygen is being sold as a commodity.
Corporations have privatized oxygen, forcing workers into dangerous situations where their suits can be remotely shut down.
The Doctor is temporarily blinded after exposure to vacuum conditions, forcing him to rely on his other senses and Bill.
Bill takes a more active role in survival and decision making, proving her resilience and intelligence under pressure.
The episode critiques capitalism, exploitation, and the commodification of basic human needs.