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Doctor Who
S4.E5
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IMDbPro

The Poison Sky

  • Episode aired May 30, 2008
  • TV-PG
  • 45m
IMDb RATING
7.5/10
7.5K
YOUR RATING
Catherine Tate, David Tennant, Freema Agyeman, and Ryan Sampson in Doctor Who (2005)
AdventureDramaSci-Fi

With planet Earth choking under the poison sky, the Doctor must stop the Sontarans' threat to the planet.With planet Earth choking under the poison sky, the Doctor must stop the Sontarans' threat to the planet.With planet Earth choking under the poison sky, the Doctor must stop the Sontarans' threat to the planet.

  • Director
    • Douglas Mackinnon
  • Writers
    • Helen Raynor
    • Robert Holmes
    • Sydney Newman
  • Stars
    • David Tennant
    • Catherine Tate
    • Freema Agyeman
  • See production info at IMDbPro
  • IMDb RATING
    7.5/10
    7.5K
    YOUR RATING
    • Director
      • Douglas Mackinnon
    • Writers
      • Helen Raynor
      • Robert Holmes
      • Sydney Newman
    • Stars
      • David Tennant
      • Catherine Tate
      • Freema Agyeman
    • 19User reviews
    • 10Critic reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos16

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    Top cast22

    Edit
    David Tennant
    David Tennant
    • The Doctor
    Catherine Tate
    Catherine Tate
    • Donna Noble
    Freema Agyeman
    Freema Agyeman
    • Martha Jones
    Billie Piper
    Billie Piper
    • Rose Tyler
    Bernard Cribbins
    Bernard Cribbins
    • Wilfred Mott
    Jacqueline King
    Jacqueline King
    • Sylvia Noble
    Ryan Sampson
    Ryan Sampson
    • Luke Rattigan
    Rupert Holliday-Evans
    Rupert Holliday-Evans
    • Colonel Mace
    Christopher Ryan
    Christopher Ryan
    • General Staal
    Dan Starkey
    Dan Starkey
    • Commander Skorr
    Clive Standen
    Clive Standen
    • Private Harris
    Wesley Theobald
    • Private Gray
    Christian Cooke
    Christian Cooke
    • Ross Jenkins
    Meryl Fernandes
    • Female Student
    Leeshon Alexander
    Leeshon Alexander
    • Male Student
    Biddy Hodson
    Biddy Hodson
    • Captain Price
    • (as Bridget Hodgson)
    Kirsty Wark
    Kirsty Wark
    • Kirsty Wark
    Lachele Carl
    Lachele Carl
    • US Newsreader
    • Director
      • Douglas Mackinnon
    • Writers
      • Helen Raynor
      • Robert Holmes
      • Sydney Newman
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews19

    7.57.5K
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    Featured reviews

    ametaphysicalshark

    It's the scale of it

    "It's the scale of it". This quote from Wilf, who is fast becoming my favorite character of the new series who isn't an alien who hops around time and space in a police phone box, perfectly describes my problem with this episode and with much of the new series. Perhaps for lack of a budget, the classic episodes rarely if ever dared set up a catastrophe on this scale. I really hate the idea of humanity being threatened every couple of weeks while the Doctor saves them. It's better if he's stopping plans that are being laid early or something of the sort. It's like the Pertwee era on steroids or something. At least the aliens didn't hover over London with nobody noticing them again.

    However, there was much to love in "The Poison Sky" with the Sontarans getting their butts kicked, more Wilf action (the only reason I'll be in favor of more Earth stories this season is seeing Bernard Cribbins in the role again), and some fine action scenes and special effects.

    The best part of the episode though, was what some would term 'fanwank' and those were the references. They weren't too obvious, after all, why WOULDN'T the Doctor mention the Brigadier?! (Stranded in Peru? Could we be seeing the return of the Brigadier sometime?) The rest of the references were pretty funny too, in particular "Are you my mummy?" If you didn't laugh at that you're either not a fan or you just don't have a sense of humor.

    I liked this episode quite a bit, and this story as a whole. It is definitely the weakest Sontaran story but the competition is strong so I'm not complaining. Good stuff, just wish we could have fewer stories where the entire universe is in peril (just Earth, eh? Still too big a scale).

    7/10
    6southdavid

    Fireball XL5

    The conclusion of this two-part episode was, thankfully, a bit stronger than the opening half.

    With the Sontaran's gas slowly overwhelming the planet, The Doctor (David Tennant) must find some way to eradicate that danger, all whilst convincing the UNIT team not to attempt to take the nuclear option on the Sontaran warship and with something off about Martha (Freema Agyeman). He does have help though, as unbeknownst to the Sontaran when they transported the TARDIS on board, they brought Donna (Catherine Tate) along with them.

    The silliness that soured the first part is largely sorted out here in the conclusion, especially once someone works out that you can smash windows to save Wilfred. He and Sylvia sealing themselves inside the house is, admittedly a bit of a strange idea, but I suppose the idea was to buy more time for the Doctor to save them? One bit of silliness that remains though is the fireball solution to burning off the gas, which would be plausible if it was only in the lower atmosphere, but we've seen the gas at ground level. I'm probably thinking too much about it, especially as, as I said I quite liked this episode.

    It holds another Doctor sacrifice, although this time he's replaced by a much more deserving replacement. Years ahead of his time, Luke Rattigan nails the Incel aesthetic by sacrificing his planet, so he can organise an off-world breeding program.

    Truth be told, it's still not brilliant. The Sontaran's are a pretty underwhelming threat. The Cybermen have the unconquerable army aesthetic down already and you think a little plastic cap on their feeding pipe would deal with the one weakness pretty quickly. This second episode was an improvement though, and lifted the double bill from shaky to solid.
    8DVD_Connoisseur

    Better than the opening installment but a weak tale

    Perhaps the most disappointing Sontaran tale to-date, this double header just doesn't cut the mustard. There are moments of genius contained within the story but the pace is too slow and there's too much filler. This could have made for a great single episode but I'm not truly impressed with the quality of Helen Raynor's script.

    While the effects work continues to impress, the quality of this adventure is not up to previous installments. I'm complained about the scope of recent "Who" stories before and this is no exception. In "The Poison Sky" the whole planet is at risk. Whatever happened to good old fashioned "domestic" peril? Tennant and Tate continue to be a classic double act while Martha seems a little out of her depth. The next episode should prove a very interesting one...

    8 out of 10.
    7boigonh

    Better second part

    The second part of the story is better. Watching it from a 2022 rewatch, it's actually amazing how much this episode predicted. A petulant man-child using "emissions" to pretend he cares about anything but his ego. And of course everyone having to seal themselves in their homes because it's deadly outside.

    While it's not the best in season 4, it was fun to come back to earth to see Donna's family. The conversation around collateral damage is a good one to keep having, and it presents a good before and after between Martha and Donna. I think it's also a good contrast between the two, and shows how the shoe benefits without the sexual tension or crush. When the companion is simply a companion, the doctor is at his best.
    6warlordartos

    No better than the opening episode

    No worse either, and yes for a guest star Bernard Cribbins is killing it in his role as Donna's Granddad, so that was good to see. Another problem is I see this episode as a way of putting Donna and Martha together to "compete" you know the same way they already did in season 2 with Sarah Jane Smith and Rose

    Related interests

    Still frame
    Adventure
    Mahershala Ali and Alex R. Hibbert in Moonlight (2016)
    Drama
    James Earl Jones and David Prowse in Star Wars: Episode V - The Empire Strikes Back (1980)
    Sci-Fi

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      It was rumoured that while filming the gas mask scene, David Tennant forgot his line, and he spontaneously ad-libbed "Are you my mummy?", the catchphrase of the gas mask zombies in the Christopher Eccleston serial The Empty Child (2005)/The Doctor Dances (2005). However, his wife Georgia Tennant confirmed that this isn't true.
    • Goofs
      At the beginning of the episode, Donna's mum smashes the front window of their car. However, car's windows are triplexes: 2 layers of glass, glued to a single layer of plastic, so they don't simply collapse, as shown. (The whole point is to prevent the crash and minimise injury from glass cuts.)
    • Quotes

      Colonel Mace: [wearing gas mask, holding assault rifle] latest firing stock; what do you think, Doctor?

      The Doctor: [also wearing gas mask] Are you my mummy?

    • Crazy credits
      SPOILER: Billie Piper receives screen credit as Rose Tyler, even though her appearance in the episode lasts less than one second.
    • Connections
      Featured in Doctor Who Confidential: Sontar-Ha! (2008)
    • Soundtracks
      Doctor Who Theme
      (uncredited)

      Written by Ron Grainer

      Arranged by Murray Gold

      Performed by BBC National Orchestra of Wales

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    Details

    Edit
    • Release date
      • May 30, 2008 (United States)
    • Country of origin
      • United Kingdom
    • Official sites
      • British Broadcasting Corporation (BBC) (United Kingdom)
      • Official Facebook
    • Language
      • English
    • Filming locations
      • Margam Castle, Margam, Neath Port Talbot, Wales, UK(Rattigan Academy)
    • Production company
      • BBC Wales
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 45m
    • Color
      • Color

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