The Poison Sky (TV story)

	[[doctor::Tenth Doctor]]
	Donna Martha (Reintroduction)
	Sontarans
	London, 2009
	Helen Raynor
	Douglas Mackinnon
	Susie Liggat
	4
	3rd May 2008
	4.5

Synopsis

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?

Plot

Under the command of General Staal, the Sontarons invade Earth. They fight UNIT, who's resistance is futile, and the Doctor realises that the Sontarons need the artificial gas from cars.

Cast

• The Doctor - David Tennant
• Donna Noble - Catherine Tate
• Martha Jones - Freema Agyeman
• Wilfred Mott - Bernard Cribbins
• Sylvia Noble - Jacqueline King
• General Staal - Christopher Ryan
• Commander Skorr - Dan Starkey
• Luke Rattigan - Ryan Sampson

Production crew

To be added

References

To be added

Story notes

• Helen Raynor wrote this episode. Her Series 3 episodes Daleks in Manhattan and Evolution of the Daleks both occupied fourth and fith episode in the series. This two part episode also occupies episode four and five.
• This is part two of The Sontaran Strategem.
• This two partner is Douglas Mackinnon's first story as director.

Ratings

To be added

Myths

to be added

Rumours

• The poison sky may refer to the way the Sontarans are taking over the earth.
• The Sontarans will clone Martha Jones, evidence from the trailers show Martha emerging from a green vat of water, and in The Sontaran Strategem preview a tank of the same green water can be seen as a cloning tank also in the cinema trailer Martha is seen covered in green slime. This has now been confirmed as true, but happened in the previous episode

Filming locations

To be added

Continuity

To be added

Discontinuity, Plot Holes, Errors

To be added.

DVD and other releases

• It will be released on the Series 4 boxset DVD in November 2008.

External Links

To be added.