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Doctor Who

Season 4, episode 4. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.

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S4 E4

The Sontaran Stratagem (1)

Aided by the Rattigan Academy, the Sontarans establish a covert base at the mysterious ATMOS Factory. Can the Doctor stop the Sontarans from unleashing a potent terror that will bring the world to its knees?

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Series 4

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Episode 1: Partners in Crime

Episode 2: The Fires of Pompeii

Episode 3: Planet of the Ood

Episode 4: The Sontaran Stratagem (1)

Now playing

Episode 5: The Poison Sky (2)

Episode 6: The Doctor's Daughter

Episode 7: The Unicorn and the Wasp

Episode 8: Silence in the Library (1)

Episode 9: Forest of the Dead (2)