S4·E5 – The Poison Sky (2)⭐ 3.7/5
2008-05-03 • 47 min
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?
Cast
David Tennant
The Doctor
Catherine Tate
Donna Noble
Billie Piper
Rose Tyler
Freema Agyeman
Martha Jones
Christopher Ryan
Commander Stark
Ryan Sampson
Luke Rattigan
Christian Cooke
Ross Jenkins
Dan Starkey
Commander Skorr
Bridget Hodgson
Captain Price
Rupert Holliday-Evans
Colonel Mace
Leeshon Alexander
Male Student
Wesley Theobald
Private Gray
