Part 2

Image for Part 2Not currently available on BBC iPlayer

Duration: 25 minutes

Sarah has been caught by the Sontaran, Field Major Styre, who is conducting cruel experiments on the captured humans, paving the way for a full-scale invasion.

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Credits

Doctor Who
Tom Baker
Sarah Jane Smith
Elisabeth Sladen
Harry Sullivan
Ian Marter
Vural
Donald Douglas
Prisoner
Brian Ellis
Krans
Glyn Jones
Styre / The Marshal
Kevin Lindsay
Roth
Peter Rutherford
Zake
Terry Walsh
Erak
Peter Walshe
Director
Rodney Bennett
Producer
Philip Hinchcliffe
Writer
Bob Baker
Writer
Dave Martin

Broadcasts

Doctor Who Extra: Listen - Watch it Now!

Doctor Who Extra: Listen - Watch it Now!

Peter Capaldi and the team reveal the secrets behind one of the spookiest episodes yet…

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