The Poison Sky (TV story)

The Poison Sky
Doctor:	[[doctor::Tenth Doctor]]
Companion(s):	Donna Martha (Reintroduction)
Main enemy:	Sontarans
Main setting:	London, 2009
Key crew
Writer:	Helen Raynor
Director:	Douglas Mackinnon
Producer:	Susie Liggat
Release details
Release number:	4
Premiere broadcast:	3rd May 2008
Format:	1 45 minute episode
Production code:	4.5

Synopsis

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?

Plot

Under the command of General Staal, the Sontarans invade Earth. They fight UNIT, whose resistance is futile, and the Doctor finds out why the Sontarans need the artificial ATMOS 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
• Colonel Mace - Rupert Holliday Evans
• 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 a two part story that began with The Sontaran Strategem.
• This two partner is Douglas Mackinnon's first story as director.

Ratings

To be added

Myths

The Sontarans need the gas from the cars to make the earth habitably from them.

Rumours

• The poison sky may refer to the way the Sontarans are taking over the earth.This is false; it refers to the way the ATMOS gas in engulfing the sky, thus the Poison Sky
• 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
• The Sontarans cannot breath our atmosphere because of global warming. This was prove false in the prior episode by General Staal removing his helmet in Rattigan Academy.
• A Rutan army will appear in flashback.
• Details of the Brigadier's whereabouts are revealed.
• The Sontarans steal the TARDIS.
• UNIT will launch a nuclear strike. This is highly likely as the trailer for this episode is set around a countdown at [one of UNIT's bases. Also during the trailer Staal states that: "the planet is going nuclear".
• The Valiant will be put to good use by Colonel Mace.
• Donna will kill a Sontaran by the Probic Vent.

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.