The Sontaran Stratagem
Doctor Who: Season 4, Episode 4
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Martha Jones summons the Doctor back to modern-day Earth, but an old enemy lies in wait.
Show: Doctor Who
Air date: April 26, 2008
Writer: Helen Raynor
Directed by: Douglas Mackinnon
Executive producer(s): Russell T Davies; Julie Gardner; Phil Collinson
First broadcast: 26 April 2008
Music by: Murray Gold