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Doctor Who S04E05, The Poison Sky (2)S04E05

Doctor Who · Season 4

Doctor Who season 4 episode 5: The Poison Sky (2)

Aired 3 May 200847 minRated TV-PG

7.4TMDB · 76 votesMark watched

Where to watch Doctor Who Season 4 in Australia

We could not find Doctor Who season 4 on any streaming, free or buy service in Australia right now.

We refresh this every day, so check back soon.

Availability checked 16 November 2026.

What happens in “The Poison Sky (2)”

The Sontarans continue their evil plot and begin to "choke" the Earth. The Doctor and Donna, now teamed with Martha have to stop them! Can they save Earth before it's too late?

Episode summary: TMDB.

Before you watch

  • It is episode 5 of 13 of season 4, so watch episodes 1 to 4 first.
  • It runs about 47 minutes.
  • Directed by Douglas Mackinnon, written by Helen Raynor.
  • TMDB users rate it 7.4 out of 10 (76 votes).

Doctor Who trailer

The official trailer for the series (no preview of this episode has been published).

Doctor Who trailerPlay video: Doctor Who trailer

Cast and crew of this episode

Director
Douglas Mackinnon
Writer
Helen Raynor
Guest stars
Billie Piper as Rose TylerFreema Agyeman as Martha JonesChristopher Ryan as Commander StarkRyan Sampson as Luke RattiganChristian Cooke as Ross JenkinsDan Starkey as Commander SkorrBridget Hodgson as Captain PriceRupert Holliday-Evans as Colonel Mace

Credits: TMDB.

More from Doctor Who Season 4

Previous · S04E04The Sontaran Stratagem (1)26 April 2008Next · S04E06The Doctor's Daughter10 May 2008
  1. E01
  2. E02
  3. E03
  4. E04
  5. E05
  6. E06
  7. E07
  8. E08
  9. E09
  10. E10
  11. E11
  12. E12
  13. E13

Every episode of Season 4Doctor Who episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.