The Sontaran Stratagem (1) S4E4 - The Sontaran Stratagem (1) 2008
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?
- Released: 2008-04-26
- Runtime: 50 minutes
- Genre:
- Stars: David Tennant, Catherine Tate
- Director: Douglas Mackinnon