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Doctor Who - S04E05 - The Poison Sky (2)
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Watch Doctor Who season 4 episode 5 Online

The Poison Sky (2)

 
As the Sontarans choke the Earth, the Doctor and UNIT battle to keep both Martha and Donna alive.
 
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Doctor Who / S04E05 : The Poison Sky (2)
Season 4, Episode 5 | Aired on May 3, 2008 | TV-PG | 45 min. | BBC One
Mark as watched
 
 
 
EPISODES
Season 4
Season 4
Season 4
Season 14
Season 13
Season 12
Season 11
Season 10
Season 9
Season 8
Season 7
Season 6
Season 5
Season 4
Season 3
Season 2
Season 1
Specials
 
 
  • Doctor Who - Episode 1 - Partners in Crime
    Episode 1
    Partners in Crime
  • Doctor Who - Episode 2 - The Fires of Pompeii
    Episode 2
    The Fires of Pompeii
  • Doctor Who - Episode 3 - Planet of the Ood
    Episode 3
    Planet of the Ood
  • Doctor Who - Episode 4 - The Sontaran Stratagem (1)
    Episode 4
    The Sontaran Stratagem (1)
  • Doctor Who - Episode 5 - The Poison Sky (2)
    Episode 5
    The Poison Sky (2)
  • Doctor Who - Episode 6 - The Doctor's Daughter
    Episode 6
    The Doctor's Daughter
  • Doctor Who - Episode 7 - The Unicorn and the Wasp
    Episode 7
    The Unicorn and the Wasp
  • Doctor Who - Episode 8 - Silence in the Library (1)
    Episode 8
    Silence in the Library (1)
  • Doctor Who - Episode 9 - Forest of the Dead (2)
    Episode 9
    Forest of the Dead (2)
  • Doctor Who - Episode 10 - Midnight
    Episode 10
    Midnight
  • Doctor Who - Episode 11 - Turn Left
    Episode 11
    Turn Left
  • Doctor Who - Episode 12 - The Stolen Earth (1)
    Episode 12
    The Stolen Earth (1)
  • Doctor Who - Episode 13 - Journey's End (2)
    Episode 13
    Journey's End (2)

Doctor Who season 4 episode 5 Recap and FAQ

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Episode Summary

Martha Jones alerts the Doctor about global deaths linked to Atmos, a car device emitting toxic gas, part of a Sontaran plot led by General Staal. The Doctor collaborates with UNIT to counter the threat. Donna plays a key role aboard the Sontaran ship, uncovering that the gas is used for Sontaran cloning. The Doctor confronts General Staal, offering a chance to retreat. The Sontarans are ultimately defeated, Martha decides to stay on Earth, and the episode ends with the surprise appearance of the Doctor's daughter.

Full Episode S04E05 Recap

### Atmos Worldwide Incident - Martha Jones contacts the Doctor about 52 simultaneous deaths worldwide. - All victims were in cars fitted with Atmos, a device that can emit poisonous gas. - The Sontarans, led by General Staal, are orchestrating this from a factory. ### UNIT's Response - Martha alerts Colonel Mace about the Sontarans. - The Doctor advises UNIT against attacking the factory, fearing a massacre. - Ross, a UNIT member, is introduced to the Doctor. ### Inside the Factory - Atmos is uncontrollable, affecting cars globally. - The Doctor, Donna, and Martha coordinate with UNIT. - Martha's family and others try to protect themselves from the gas. ### Sontaran Ship and TARDIS - The Sontarans have the Doctor's TARDIS aboard their ship. - The Doctor contacts the Sontarans, questioning their tactics. - A conversation reveals the ongoing war between the Sontarans and Rutans. ### UNIT and Sontaran Confrontation - Colonel Mace prepares for combat despite the Doctor's warnings. - The Sontarans take control of the factory. - Standard weapons are ineffective against the Sontarans. ### The Doctor's Plan - The Doctor devises a strategy to counter the Sontarans. - Donna plays a crucial role in executing the plan from the Sontaran ship. - The Atmos gas is discovered to be a clone-feed for Sontaran reproduction. ### Final Confrontation and Resolution - The Doctor confronts General Staal with a choice: leave Earth or face destruction. - The Sontarans are defeated, and the Earth is saved. - Martha decides to stay on Earth, and Donna continues her journey with the Doctor. ### Arrival of the Doctor's Daughter - The Tardis unexpectedly takes off, leading to the appearance of a young woman. - The woman reveals herself as the Doctor's daughter, surprising everyone.

Frequently Asked Questions

Who is Martha Jones contacting at the beginning of the episode?

The Doctor.

What device is causing worldwide deaths?

Atmos.

Who are the antagonists orchestrating the Atmos incident?

The Sontarans, led by General Staal.

What does Martha Jones tell Colonel Mace?

To alert him about the Sontarans and advise caution.

Who is Ross?

A member of UNIT.

What is the global effect of the Atmos devices?

They are uncontrollable and affecting cars worldwide with poisonous gas.

What is the state of the Doctor's TARDIS during the episode?

It is on the Sontaran ship.

What long-standing war is mentioned?

The war between the Sontarans and the Rutans.

How does the Doctor plan to defeat the Sontarans?

By devising a strategy and using Donna's help from the Sontaran ship.

What is the Atmos gas discovered to be?

A clone-feed for Sontaran reproduction.

What choice does the Doctor give General Staal?

Leave Earth or face destruction.

What decision does Martha make at the end of the episode?

To stay on Earth.

Who unexpectedly appears at the end of the episode?

The Doctor's daughter.

What is the Doctor's reaction to the arrival of his daughter?

He is surprised.

What is the main conflict in this episode?

The Sontaran plot to use Earth for cloning using Atmos gas.

 
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