The Poison Sky (2)
Run Time: mins
Air Date: Sat, 3 May 2008
Average Rating: ⭐ 7.2 (58 votes)
BBC OneSeason 4 - Episode 5
Average Rating: ⭐ 7.2 (58)
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?