Doctor Who · SEASON 4
The Poison Sky (2)
Episode 5 · 2008-05-03

- Action & Adventure
- Drama
- Sci-Fi & Fantasy
Episode overview
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?
47 minutes
Season 4 episodes
1. Partners in Crime2008-04-05
2. The Fires of Pompeii2008-04-12
3. Planet of the Ood2008-04-19
4. The Sontaran Stratagem (1)2008-04-26
5. The Poison Sky (2)2008-05-03
6. The Doctor's Daughter2008-05-10
7. The Unicorn and the Wasp2008-05-17
8. Silence in the Library (1)2008-05-31
9. Forest of the Dead (2)2008-06-07
10. Midnight2008-06-14
11. Turn Left2008-06-21
12. The Stolen Earth (1)2008-06-28
13. Journey's End (2)2008-07-05