The fifth episode of Doctor Who Series 4 continues from episode 4 and sees The Doctor, Donna and Martha facing the Sontarans. With Wilf choking inside his car and a traitor inside of UNIT will The Doctor have to make the ultimate sacrifice? The press release for this particular episode can be seen below.
The Sontarans activate their masterplan and begin to choke the whole of planet Earth, as Russell T Davies’s Bafta Award-winning time-travelling drama continues.
UNIT is left defenceless, with a traitor in their ranks. And as interplanetary war edges closer, the Doctor has to fight to keep both Martha and Donna alive – but will he have to make the ultimate sacrifice?
A next time trailer was also shown after the episode The Sontaran Stratagem in which we saw more clips from this episode. In this trailer we see clips off the Sontarans in action as well as clips off The Doctor, Donna and Martha. This next time trailer can be seen below.
Finally here are some screencaps for The Poison Sky Next Time Trailer. These screencaps have been created by myself and can be seen below. To see more screen caps like these check out the Bad Wolf PR screencaps page.